DOI: 10.15468/dl.6wt3ak
title: Occurrence Download

description: A dataset containing 911080 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Rhynchospora indianolensis Small, Rhynchospora inexpansa (Michx.) Vahl, Rhynchospora inundata (Oakes) Fernald, Rhynchospora knieskernii J.Carey, Rhynchospora latifolia (Baldwin ex Elliott) W.W.Thomas, Rhynchospora macra (C.B.Clarke ex Britton) Small, Rhynchospora macrostachya Torr. ex A.Gray, Rhynchospora marliniana Naczi, W.M.Knapp & W.W.Thomas, Rhynchospora megalocarpa A.Gray, Rhynchospora microcarpa Baldwin ex A.Gray, Rhynchospora miliacea (Lam.) A.Gray, Rhynchospora mixta Britton, Rhynchospora nitens (Vahl) A.Gray, Rhynchospora odorata C.Wright ex Griseb., Rhynchospora oligantha A.Gray, Rhynchospora pallida M.A.Curtis, Rhynchospora perplexa Britton, Rhynchospora pineticola C.B.Clarke, Rhynchospora pleiantha (Kük.) Gale, Rhynchospora plumosa Elliott, Rhynchospora punctata Elliott, Rhynchospora pusilla Chapm. ex M.A.Curtis, Rhynchospora rariflora (Michx.) Elliott, Rhynchospora recognita (Gale) Kral, Rhynchospora saxicola Small, Rhynchospora scirpoides (Torr.) Griseb., Rhynchospora solitaria R.M.Harper, Rhynchospora stenophylla Chapm., Rhynchospora sulcata Gale, Rhynchospora thornei Kral, Rhynchospora torreyana A.Gray, Rhynchospora tracyi Britton, Rhynchospora wrightiana Boeckeler, Rhynchostegium aquaticum A.Jaeger, Rhynchostegium serrulatum (Hedw.) A.Jaeger, Rhytidiadelphus loreus (Hedw.) Warnst., Rhytidiadelphus squarrosus (Hedw.) Warnst., Rhytidiadelphus subpinnatus (Lindb.) T.J.Kop., Rhytidiadelphus triquetrus (Hedw.) Warnst., Rhytidiopsis robusta (Hook.) Broth., Rhytidium rugosum (Hedw.) Kindb., Ribes acerifolium Howell, Ribes americanum Mill., Ribes aureum Pursh, Ribes binominatum A.Heller, Ribes californicum Hook. & Arn., Ribes canthariforme Wiggins, Ribes curvatum Small, Ribes cynosbati L., Ribes divaricatum Douglas, Ribes echinellum (Coville) Rehder, Ribes erythrocarpum Coville & Leiberg, Ribes glandulosum Grauer, Ribes hirtellum Michx., Ribes hudsonianum Richardson, Ribes inerme Rydb., Ribes lacustre (Pers.) Poir., Ribes lasianthum Greene, Ribes laxiflorum Pursh, Ribes malvaceum Sm., Ribes marshallii Greene, Ribes missouriense Nutt. ex Torr. & A.Gray, Ribes montigenum Mc Clatchie, Ribes niveum Lindl., Ribes oxyacanthoides L., Ribes pinetorum Greene, Ribes quercetorum Greene, Ribes roezlii Regel, Ribes rotundifolium Michx., Ribes sanguineum Pursh, Ribes speciosum Pursh, Ribes triste Pall., Ribes tularense (Coville) Standl., Ribes viburnifolium A.Gray, Ribes victoris Greene, Ribes viscosissimum Pursh, Ribes wolfii Rothr., Riccardia chamedryfolia (With.) Grolle, Riccardia jugata R.M.Schust., Riccardia latifrons (Lindb.) Lindb., Riccardia multifida (L.) Gray, Riccardia palmata (Hedw.) Carruth., Riccia albida Sull. ex Austin, Riccia beyrichiana Hampe, Riccia bifurca Hoffm., Riccia californica Austin, Riccia cavernosa Hoffm., Riccia crystallina L., Riccia dictyospora M.Howe, Riccia fluitans L., Riccia frostii Austin, Riccia gougetiana Durieu & Mont., Riccia hirta (Austin) Underw., Riccia huebeneriana Lindenb., Riccia lamellosa Raddi, Riccia macallisteri M.Howe, Riccia ozarkiana McGregor, Riccia rhenana Lorb. ex Müll.Frib., Riccia sorocarpa Bisch., Riccia tenella D.L.Jacobs, Riccia warnstorfii Limpr. ex Warnst., Ricciocarpos natans (L.) Corda, Richardia scabra L., Riella affinis M.Howe & Underw., Riella americana M.Howe & Underw., Rivina humilis L., Rivulariella gemmipara (A.Evans) D.H.Wagner, Robinia neomexicana A.Gray, Robinia viscosa Michx. ex Vent., Roellobryon roellii (Broth.) Ochyra, Roldana hartwegii (Benth.) H.Rob. & Brettell, Rollandia angustifolia (Hillebr.) Rock, Rollandia crispa Gaudich., Rollandia humboldtiana Gaudich., Rollandia longiflora Wawra, Rollandia Gaudich., Romanzoffia californica Greene, Romanzoffia sitchensis Bong., Romanzoffia thompsonii Marttala, Romanzoffia tracyi Jeps., Romanzoffia unalaschcensis Cham., Romneya trichocalyx Eastw., Rorippa alpina (S.Watson) Rydb., Rorippa barbareifolia (DC.) Kitag., Rorippa calycina (Engelm.) Rydb., Rorippa columbiae (Suksd. ex B.L.Rob.) Suksd. ex Howell, Rorippa curvipes Greene, Rorippa curvisiliqua (Hook.) Bessey ex Britton, Rorippa floridana Al-Shehbaz & Rollins, Rorippa gambellii (S.Watson) Rollins & Al-Shehbaz, Rorippa nasturtium-aquaticum (L.) Hayek, Rorippa palustris (L.) Besser, Rorippa ramosa Rollins, Rorippa sessiliflora (Nutt.) Hitchc., Rorippa sinuata (Nutt.) Hitchc., Rorippa sphaerocarpa (A.Gray) Britton, Rorippa subumbellata Rollins, Rorippa tenerrima Greene, Rorippa teres (Michx.) Stuckey, Rorippa truncata (Jeps.) Stuckey, Rosa acicularis Lindl., Rosa arkansana Port. & Coult., Rosa blanda Aiton, Rosa carolina L., Rosa foliolosa Nutt. ex Torr. & A.Gray, Rosa L., Rosa minutifolia Parry, Rosa myriadenia Greene, Rosa nitida Willd., Rosa nutkana C.Presl, Rosa pinetorum A.Heller, Rosa setigera Michx., Rosa stellata Wooton, Rosa virginiana Herrm., Rosa woodsii Lindl., Rosa ×dulcissima Lunell ex W.H.Lewis, Rosa yainacensis Greene, Rosulabryum canariense (Brid.) Ochyra, Rosulabryum capillare (Hedw.) J.R.Spence, Rosulabryum elegans (Nees ex Brid.) Ochyra, Rosulabryum erythroloma (Kindb.) J.R.Spence, Rosulabryum flaccidum (Brid.) J.R.Spence, Rosulabryum gemmascens (Kindb.) J.R.Spence, Rosulabryum rubens (Mitt.) J.R.Spence, Rotala ramosior (L.) Koehne, Roystonea elata (W.Bartram) F.Harper, Rubus aboriginum Rydb., Rubus aculiferus Fernald, Rubus ×adenocaulis Fernald, Rubus ×alaskensis L.H.Bailey, Rubus allegheniensis Porter, Rubus ×alter L.H.Bailey, Rubus alumnus L.H.Bailey, Rubus andrewsianus Blanch., Rubus apogaeus L.H.Bailey, Rubus aptatus L.H.Bailey, Rubus arcticus L., Rubus arcticus subsp. acaulis (Michx.) Focke, Rubus argutus Link, Rubus bartonianus Peck, Rubus bellobatus L.H.Bailey, Rubus bicknellii L.H.Bailey, Rubus ×bigelovianus L.H.Bailey, Rubus ×boyntonii Ashe, Rubus burnhamii L.H.Bailey, Rubus canadensis L., Rubus centralis L.H.Bailey, Rubus chamaemorus L., Rubus clarus L.H.Bailey, Rubus cubitans Blanch., Rubus cuneifolius Pursh, Rubus curtipes L.H.Bailey, Rubus defectionis Fernald, Rubus deliciosus Torr., Rubus densissimus H.A. & T.Davis, Rubus depavitus L.H.Bailey, Rubus ×elegantulus Blanch., Rubus flagellaris Willd., Rubus ×flavinanus Blanch., Rubus ×fraternalis L.H.Bailey, Rubus frondosus Bigelow, Rubus ×furtivus L.H.Bailey, Rubus gnarus L.H.Bailey, Rubus grimesii L.H.Bailey, Rubus gulosus L.H.Bailey, Rubus hancinianus L.H.Bailey, Rubus hanesii L.H.Bailey, Rubus ×harmonicus L.H.Bailey, Rubus hawaiensis A.Gray, Rubus hispidoides L.H.Bailey, Rubus hispidus L., Rubus ×hypolasius Fernald, Rubus idaeus L., Rubus impar L.H.Bailey, Rubus inclinis L.H.Bailey, Rubus inferior L.H.Bailey, Rubus iniens L.H.Bailey, Rubus insulanus L.H.Bailey, Rubus kelloggii L.H.Bailey, Rubus ×largus L.H.Bailey, Rubus lasiococcus A.Gray, Rubus laudatus A.Berger, Rubus lawrencei L.H.Bailey, Rubus leucodermis Douglas ex Hook., Rubus longii Fernald, Rubus macraei A.Gray, Rubus macrophyllus Weihe, Rubus mananensis L.H.Bailey, Rubus meracus L.H.Bailey, Rubus michiganensis (Card) L.H.Bailey, Rubus mirus L.H.Bailey, Rubus missouricus L.H.Bailey, Rubus mollior L.H.Bailey, Rubus montensis L.H.Bailey, Rubus multifer L.H.Bailey, Rubus nefrens L.H.Bailey, Rubus neomexicanus A.Gray, Rubus nigerrimus (Greene) Rydb., Rubus nivalis Douglas ex Hook., Rubus ×novanglicus L.H.Bailey, Rubus ×noveboracus L.H.Bailey, Rubus novocaesarius L.H.Bailey, Rubus obsessus L.H.Bailey, Rubus occidentalis L., Rubus odoratus L., Rubus originalis L.H.Bailey, Rubus ortivus (L.H.Bailey) L.H.Bailey, Rubus ×ostryifolius Rydb., Rubus paludivagus Fernald, Rubus ×parlinii L.H.Bailey, Rubus particeps L.H.Bailey, Rubus parviflorus Figert ex Sprib., Rubus pascuus L.H.Bailey, Rubus pedatus Sm., Rubus ×permixtus Blanch., Rubus philadelphicus Blanch., Rubus plicatifolius Blanch., Rubus porteri L.H.Bailey, Rubus prestonensis H.A. & T.Davis, Rubus probativus L.H.Bailey, Rubus prosper L.H.Bailey, Rubus provincialis L.H.Bailey, Rubus pubescens Raf., Rubus quaesitus L.H.Bailey, Rubus racemiger L.H.Bailey, Rubus recurvans Blanch., Rubus ×recurvicaulis Blanch., Rubus repens Gueldenst., Rubus roribaccus (L.H.Bailey) Rydb., Rubus rosa L.H.Bailey, Rubus rosarius L.H.Bailey, Rubus ×rossbergianus Blanch., Rubus russeus L.H.Bailey, Rubus saltuensis L.H.Bailey, Rubus semisetosus Blanch., Rubus ×setosus Bigelow, Rubus ×severus Brainerd ex Fernald, Rubus sewardianus Fernald, Rubus signatus L.H.Bailey, Rubus spectabilis Pursh, Rubus steelei L.H.Bailey, Rubus stipulatus L.H.Bailey, Rubus suppar L.H.Bailey, Rubus ×tardatus Blanch., Rubus ×trifrons Blanch., Rubus trivialis Michx., Rubus trux Ashe, Rubus uniformis L.H.Bailey, Rubus ursinus Cham. & Schltdl., Rubus uvidus L.H.Bailey, Rubus vagus Focke, Rubus variispinus L.H.Bailey, Rubus velox L.H.Bailey, Rubus vermontanus Blanch., Rubus ×vigilis L.H.Bailey, Rubus weatherbyi L.H.Bailey, Rubus whartoniae L.H.Bailey, Rubus wheeleri (L.H.Bailey) L.H.Bailey, Rubus ×wisconsinensis L.H.Bailey, Rubus ×paracaulis L.H.Bailey, Rudbeckia auriculata (Perdue) Kral, Rudbeckia bicolor Nutt., Rudbeckia fulgida Aiton, Rudbeckia graminifolia (Torr. & A.Gray) C.L.Boynton & Beadle, Rudbeckia grandiflora (Sw.) J.F.Gmel. ex DC., Rudbeckia heliopsidis Torr. & A.Gray, Rudbeckia hirta L., Rudbeckia laciniata L., Rudbeckia maxima Nutt., Rudbeckia missouriensis Engelm. ex C.L.Boynton & Beadle, Rudbeckia mollis Elliott, Rudbeckia nitida Nutt., Rudbeckia occidentalis Nutt., Rudbeckia scabrifolia L.E.Br., Rudbeckia subtomentosa Pursh, Rudbeckia texana (Perdue) P.B.Cox & Urbatsch, Rudbeckia triloba L., Ruellia caroliniensis (J.F.Gmel.) Steud., Ruellia davisiorum Tharp & F.A.Barkley, Ruellia humilis Nutt., Ruellia noctiflora (Nees) A.Gray, Ruellia pedunculata Torr. ex A.Gray, Ruellia purshiana Fernald, Ruellia strepens L., Rugelia nudicaulis Shuttlew. ex Chapm., Rumex albescens Hillebr., Rumex altissimus Wood, Rumex arcticus Trautv., Rumex beringensis Jurtzev & V.V.Petrovsky, Rumex densiflorus Osterh., Rumex giganteus Aiton, Rumex graminifolius Georgi ex Lamb., Rumex hastatulus Baldwin, Rumex hymenosepalus Torr., Rumex krausei Jurtzev & Petrovsky, Rumex maritimus L., Rumex nematopodus Rech.fil., Rumex orbiculatus A.Gray, Rumex orthoneurus Rech.fil., Rumex pallidus Bigelow, Rumex paucifolius Nutt., Rumex skottsbergii O.Deg. & I.Deg., Rumex venosus Pursh, Rumex verticillatus L., Rupertia hallii (Rydb.) J.W.Grimes, Rupertia physodes (Douglas) J.W.Grimes, Ruppia cirrhosa (Petagna) Grande, Ruppia maritima L., Sabal mexicana Mart., Sabal minor (Jacq.) Pers., Sabal palmetto (Walter) Lodd. ex Schult. & Schult.f., Sabatia angularis (L.) Pursh, Sabatia arenicola Greenm., Sabatia bartramii Wilbur, Sabatia brachiata Elliott, Sabatia brevifolia Raf., Sabatia calycina (Lam.) A.Heller, Sabatia campanulata (L.) Torr. ex Griseb., Sabatia campestris Nutt., Sabatia capitata (Raf.) S.F.Blake, Sabatia difformis (L.) Druce, Sabatia dodecandra (L.) Britton, Sterns & Poggenb., Sabatia gentianoides Elliott, Sabatia grandiflora (A.Gray) Small, Sabatia kennedyana Fernald, Sabatia macrophylla Hook., Sabatia quadrangula Wilbur, Sabatia stellaris Pursh, Saccharum alopecuroidum (L.) Nutt., Saccharum baldwinii Spreng., Saccharum brevibarbe (Michx.) Pers., Saccharum coarctatum (Fernald) R.D.Webster, Saccharum contortum (Baldwin ex Elliott) Nutt., Saccharum giganteum (Walter) Pers., Sacciolepis striata (L.) Nash, Saccobasis polita (Nees) H.Buch, Saccobasis polymorpha (R.M.Schust.) Schljakov, Sachsia polycephala Griseb., Sadleria cyatheoides Kaulf., Sadleria pallida Hook. & Arn., Sadleria souleyetiana (Gaudich.) T.Moore, Sadleria squarrosa (Gaudich.) T.Moore, Saelania glaucescens (Hedw.) Broth., Sageretia minutiflora (Michx.) Trel., Sageretia wrightii S.Watson, Sagina caespitosa (J.Vahl) Lange, Sagina decumbens (Elliott) Torr. & A.Gray, Sagina nivalis (Lindblad) Fr., Sagina nodosa (L.) Fenzl, Sagina procumbens L., Sagina saginoides (L.) Karst., Sagittaria ambigua J.G.Sm., Sagittaria australis (J.G.Sm.) Small, Sagittaria brevirostra Mack. & Bush, Sagittaria calycina var. calycina, Sagittaria cristata Engelm., Sagittaria cuneata E.Sheld., Sagittaria demersa J.G.Sm., Sagittaria engelmanniana J.G.Sm., Sagittaria fasciculata E.O.Beal, Sagittaria filiformis J.G.Sm., Sagittaria graminea Michx., Sagittaria isoetiformis J.G.Sm., Sagittaria kurziana Glück, Sagittaria lancifolia L., Sagittaria latifolia Willd., Sagittaria longiloba Engelm. ex J.G.Sm., Sagittaria montevidensis Cham. & Schltdl., Sagittaria platyphylla (Engelm.) J.G.Sm., Sagittaria rigida Pursh, Sagittaria sanfordii Greene, Sagittaria secundifolia Kral, Sagittaria subulata (L.) Buchenau, Sagittaria teres S.Watson, Sairocarpus breweri (A.Gray) D.A.Sutton, Sairocarpus kingii (S.Watson) D.A.Sutton, Sairocarpus subcordatus (A.Gray) D.A.Sutton, Sairocarpus vexillocalyculatus (Kellogg) D.A.Sutton, Sairocarpus virga (A.Gray) D.A.Sutton, Salazaria mexicana Torr., Salicornia bigelovii Torr., Salicornia maritima S.L.Wolff & Jefferies, Salicornia rubra A.Nelson, Salix alaxensis (Andersson) Coville, Salix amygdaloides Andersson, Salix arbusculoides Andersson, Salix arctica Pall., Salix arctophila Cockerell ex A.Heller, Salix argyrocarpa Andersson, Salix arizonica Dorn, Salix athabascensis Raup, Salix ballii Dorn, Salix barclayi Andersson, Salix barrattiana Hook., Salix bebbiana Sarg., Salix boothii Dorn, Salix brachycarpa Nutt., Salix breweri Bebb, Salix calcicola Fernald & Wiegand, Salix candida Flüggé ex Willd., Salix caroliniana Michx., Salix cascadensis Cockerell, Salix chamissonis Andersson, Salix chlorolepis Fernald, Salix commutata Bebb, Salix cordata Michx., Salix delnortensis C.K.Schneid., Salix discolor Muhl., Salix drummondiana Barratt, Salix eastwoodiae Cockerell ex A.Heller, Salix eriocephala Michx., Salix exigua Nutt., Salix farriae C.R.Ball, Salix floridana Chapm., Salix fuscescens Andersson, Salix glauca L., Salix gooddingii C.R.Ball, Salix herbacea L., Salix hookeriana Barratt, Salix humilis Marshall, Salix interior Rowlee, Salix irrorata Andersson, Salix jejuna Fernald, Salix laevigata Bebb, Salix lemmonii Bebb, Salix ligulifolia (C.R.Ball) C.R.Ball ex C.K.Schneid., Salix lucida Muhl., Salix maccalliana Rowlee, Salix melanopsis Nutt., Salix monticola Bebb, Salix myricoides Muhl., Salix myrtillifolia Andersson, Salix nigra Marshall, Salix nivalis Hook., Salix ovalifolia Trautv., Salix pedicellaris Pursh, Salix pellita Andersson, Salix petiolaris Sm., Salix planifolia Pursh, Salix prolixa Andersson, Salix pseudomonticola C.R.Ball, Salix pyrifolia Andersson, Salix raupii Argus, Salix reticulata L., Salix richardsonii Hook., Salix rotundifolia Trautv., Salix scouleriana Barratt, Salix sericea Muhl., Salix serissima (Bailey) Fernald, Salix sessilifolia Nutt., Salix setchelliana C.R.Ball, Salix silicicola Raup, Salix sitchensis Sanson ex Bong., Salix sphenophylla A.K.Skvortsov, Salix stolonifera Coville, Salix taxifolia Kunth, Salix turnorii Raup, Salix tweedyi (Bebb ex Rose) Ball, Salix uva-ursi Pursh, Salix vestita Pursh, Salix wolfii Bebb, Salix ×bebbii Gandoger, Saltugilia latimeri T.L.Weese & L.A.Johnson, Salvia amissa Epling, Salvia arizonica A.Gray, Salvia brandegeei Munz, Salvia clevelandii (A.Gray) Greene, Salvia columbariae Benth., Salvia davidsonii Greenm., Salvia dolichantha E.Peter, Salvia dorrii (Kellogg) Abrams, Salvia dorrii var. clokeyi Strachan, Salvia dorrii var. clokeyi Strachan, Salvia eremostachya Jeps., Salvia funerea M.E.Jones, Salvia greatae Brandegee, Salvia leucophylla Greene, Salvia lyrata L., Salvia munzii Epling, Salvia pachyphylla Epling ex Munz, Salvia parryi A.Gray, Salvia penstemonoides K.Koch & C.D.Bouché, Salvia pinguifolia (Fernald) Wooton & Standl., Salvia reflexa Hornem., Salvia regla Cav., Salvia summa A.Nelson, Salvia urticifolia L., Salvia vaseyi (Porter) Parish, Salvia vinacea Wooton & Standl., Salvinia minima Baker, Sambucus racemosa L., Samolus ebracteatus Kunth, Samolus vagans Greene, Samolus valerandi L., Sanguinaria canadensis L., Sanguisorba canadensis L., Sanguisorba menziesii Rydb., Sanguisorba officinalis L., Sanicula arctopoides Hook. & Arn., Sanicula bipinnatifida Douglas, Sanicula canadensis L., Sanicula graveolens Poepp. ex DC., Sanicula hoffmannii (R.H.Shan & Constance) Bell, Sanicula marilandica L., Sanicula maritima Kellogg ex S.Watson, Sanicula mariversa Nagata & S.M.Gon, Sanicula odorata (Raf.) Pryer & Phillippe, Sanicula peckiana J.F.Macbr., Sanicula purpurea H.St.John & Hosaka, Sanicula sandwicensis A.Gray, Sanicula saxatilis Greene, Sanicula smallii E.P.Bicknell, Sanicula trifoliata E.P.Bicknell, Sanionia nivalis Hedenäs, Sanionia orthothecioides (Lindb.) Loeske, Santalum ellipticum Gaudich., Santalum freycinetianum Gaudich., Santalum haleakalae Hillebr., Santalum paniculatum Hook. & Arn., Sanvitalia abertii A.Gray, Sapindus oahuensis Hillebr., Sapium caribaeum Urb., Sarcobatus vermiculatus (Hook.) Torr., Sarcocornia perennis (Mill.) A.J.Scott, Sarcocornia utahensis (Tidestr.) A.J.Scott, Sarcostemma crispum Benth., Sarcostemma torreyi (A.Gray) Woodson, Sarmentypnum exannulatum (Schimp.) Hedenäs, Sarmentypnum sarmentosum (Wahlenb.) Tuom. & T.J.Kop., Sarmentypnum trichophyllum (Warnst.) Hedenäs, Sarmentypnum tundrae (Arnell) Hedenäs, Sarracenia alabamensis Case & R.B.Case, Sarracenia flava L., Sarracenia jonesii Wherry, Sarracenia leucophylla Raf., Sarracenia minor Walter, Sarracenia oreophila (Kearney) Wherry, Sarracenia psittacina Michx., Sarracenia purpurea L., Sarracenia rosea Naczi, Case & R.B.Case, Sarracenia rubra Walter, Sarracenia ×catesbaei (Elliott) Bell, Sarracenia ×charlesmoorei Mellich., Sarracenia ×chelsonii H.J.Veitch, Sarracenia ×harperi Bell, Sarracenia ×rehderi Bell, Sarracenia ×swaniana G.Nicholson, Sartwellia flaveriae A.Gray, Sassafras albidum (Nutt.) Nees, Saururus cernuus L., Saussurea americana D.C.Eaton, Saussurea angustifolia (L.) DC., Saussurea nuda Ledeb., Saussurea triangulata Trautv. & C.A.Mey., Saussurea weberi Hultén, Sauteria alpina (Nees) Nees, Savia bahamensis Britton, Saxifraga adscendens L., Saxifraga adscendens var. oregonensis (Raf.) Breitung, Saxifraga aizoides L., Saxifraga aleutica Hultén, Saxifraga bronchialis L., Saxifraga bryophora var. tobiasiae J.W.Grimes & P.L.Packard, Saxifraga cernua L., Saxifraga cespitosa L., Saxifraga cherlerioides Presl ex Ledeb., 1844, Saxifraga chrysantha A.Gray, Saxifraga debilis Engelm., Saxifraga eschscholtzii Sternb., Saxifraga flagellaris Sternb. & Willd., Saxifraga hirculus L., Saxifraga hyperborea R.Br., Saxifraga mertensiana Bong., Saxifraga oppositifolia L., Saxifraga paniculata Mill., Saxifraga rivularis L., Saxifraga serpyllifolia Pursh, Saxifraga serpyllifolia var. chrysantha (A.Gray) Dorn, Saxifraga tricuspidata Rottb., Saxifragopsis fragarioides (Greene) Small, Scaevola chamissoniana Gaudich., Scaevola coriacea Nutt., Scaevola gaudichaudiana Cham., Scaevola gaudichaudii Hook. & Arn., Scaevola glabra Hook. & Arn., Scaevola kilaueae O.Deg., Scaevola mollis Hook. & Arn., Scaevola plumieri (L.) Vahl, Scaevola procera Hillebr., Scaevola sericea G.Forst., Scapania apiculata Spruce, Scapania brevicaulis Taylor, Scapania calcicola (Arnell & J.Perss.) Ingham, Scapania carinthiaca (Gottsche & Rabenh.) J.B.Jack ex Lindb., Scapania compacta (Roth) Dumort., Scapania crassiretis Bryhn, Scapania curta (Mart.) Dumort., Scapania cuspiduligera (Nees) Müll.Frib., Scapania degenii Schiffn. ex Müll.Frib., Scapania glaucocephala (Taylor) Austin, Scapania gymnostomophila Kaal., Scapania hians Steph. ex Müll.Frib., Scapania hollandiae W.S.Hong, Scapania hyperborea Jørg., Scapania irrigua (Nees) Nees, Scapania kaurinii Ryan, Scapania ligulifolia R.M.Schust., Scapania lingulata H.Buch, Scapania microdonta (Mitt.) Müll.Frib., Scapania mucronata H.Buch, Scapania nemorea (L.) Grolle, Scapania obcordata (Berggr.) S.W.Arnell, Scapania obscura (Arnell & C.E.O.Jensen) Schiffn., Scapania ornithopodioides (With.) Waddell, Scapania paludicola Loeske & Müll.Frib., Scapania paludosa (Müll.Frib.) Müll.Frib., Scapania paradoxa R.M.Schust., Scapania parvifolia Warnst., Scapania praetervisa Meyl., Scapania pseudocalcicola R.M.Schust., Scapania scandica (Arnell & H.Buch) Macvicar, Scapania serrulata R.M.Schust., Scapania simmonsii Bryhn & Kaal., Scapania spitsbergensis (Lindb.) Müll.Frib., Scapania subalpina (Nees ex Lindenb.) Dumort., Scapania tundrae (Arnell) H.Buch, Scapania uliginosa (Lindenb.) Dumort., Scapania umbrosa (Schrad.) Dumort., Scapania undulata (L.) Dumort., Scapania zemliae S.W.Arnell, Schaefferia frutescens Jacq., Schedonnardus paniculatus (Nutt.) Trel., Scheuchzeria palustris L., Schiedea adamantis H.St.John, Schiedea apokremnos H.St.John, Schiedea attenuata W.L.Wagner, Weller & A.K.Sakai, Schiedea diffusa A.Gray, Schiedea globosa H.Mann, Schiedea haleakalensis O.Deg. & Sherff, Schiedea helleri Sherff, Schiedea hookeri A.Gray, Schiedea kaalae Wawra, Schiedea kauaiensis H.St.John, Schiedea kealiae Caum & Hosaka, Schiedea ligustrina Cham. & Schltdl., Schiedea lydgatei Hillebr., Schiedea mannii H.St.John, Schiedea membranacea H.St.John, Schiedea menziesii Hook., Schiedea nuttallii Hook., Schiedea pubescens Hillebr., Schiedea salicaria Hillebr., Schiedea sarmentosa O.Deg. & Sherff, Schiedea spergulina A.Gray, Schiedea stellarioides H.Mann, Schiedea verticillata F.Br., Schisandra glabra (Brickell) Rehder, Schistidium agassizii Sull. & Lesq., Schistidium apocarpum (Hedw.) Bruch & Schimp., Schistidium atrichum (Müll.Hal. & Kindb.) W.A.Weber, Schistidium atrofuscum (Schimp.) Limpr., Schistidium boreale Poelt, Schistidium cinclidodonteum (Müll.Hal.) B.Bremer, Schistidium confertum (Funck) Bruch & Schimp., Schistidium crassipilum H.H.Blom, Schistidium crassithecium H.H.Blom ex B.H.Allen, Schistidium cryptocarpum Mogensen & H.H.Blom, Schistidium dupretii (Thér.) W.A.Weber, Schistidium flaccidum (De Not.) Ochyra, Schistidium flexipile (Lindb. ex Broth.) G.Roth, Schistidium frigidum H.H.Blom, Schistidium heterophyllum (Kindb.) T.T.McIntosh, Schistidium holmenianum Steere & Brassard, Schistidium liliputanum (Müll.Hal.) Deguchi, Schistidium maritimum (Sm. ex R.Scott) Bruch & Schimp., Schistidium papillosum Culm., Schistidium pulchrum H.H.Blom, Schistidium rivulare (Brid.) Podp., Schistidium robustum (Nees & Hornsch.) H.H.Blom, Schistidium strictum (Turner) Loeske ex Mårtensson, Schistidium tenerum (J.E.Zetterst.) Nyholm, Schistidium trichodon (Brid.) Poelt, Schistidium venetum H.H.Blom, Schistochilopsis grandiretis (Lindb. ex Kaal.) Konstant., Schistochilopsis hyperarctica Konstant. & L.Söderstr., Schistochilopsis incisa (Schrad.) Konstant., Schistophragma intermedium (A.Gray) Pennell, Schistostega pennata (Hedw.) F.Weber & D.Mohr, Schizachne purpurascens (Torr.) Swallen, Schizachyrium gracile (Spreng.) Nash, Schizachyrium maritimum (Chapm.) Nash, Schizachyrium niveum (Swallen) Gould, Schizachyrium sanguineum (Retz.) Alston, Schizachyrium scoparium (Michx.) Nash, Schizachyrium sericatum (Swallen) Gould, Schizachyrium spadiceum (Swallen) Wipff, Schizachyrium stoloniferum Nash, Schizaea pusilla Pursh, Schizaea robusta Baker, Schkuhria multiflora Hook. & Arn., Schljakovia kunzeana (Huebener) Konstant. & Vilnet, Schljakovianthus quadrilobus (Lindb.) Konstant. & Vilnet, Schlotheimia lancifolia E.B.Bartram, Schlotheimia rugifolia (Hook.) Schwägr., Schoenocaulon dubium (Michx.) Small, Schoenocrambe linifolia (Nutt.) Greene, Schoenolirion albiflorum (Raf.) R.R.Gates, Schoenolirion croceum (Michx.) Alph.Wood, Schoenolirion wrightii Sherman, Schoenoplectiella hallii (A.Gray) Lye, Schoenoplectiella purshiana (Fernald) Lye, Schoenoplectiella saximontana (Fernald) Lye, Schoenoplectiella smithii (A.Gray) Hayas., Schoenoplectus acutus (Muhl. ex Bigelow) Á.Löve & D.Löve, Schoenoplectus americanus (Pers.) Volkart, Schoenoplectus californicus (C.A.Mey.) Soják, Schoenoplectus deltarum (Schuyler) Soják, Schoenoplectus etuberculatus (Steud.) Soják, Schoenoplectus heterochaetus (Chase) Soják, Schoenoplectus pungens (Vahl) Palla, Schoenoplectus subterminalis (Torr.) Soják, Schoenoplectus tabernaemontani (C.C.Gmel.) Palla, Schoenoplectus torreyi (Olney) Palla, Schoenoplectus ×steinmetzii (Fernald) S.G.Sm., Schoenus nigricans L., Schoepfia arenaria Britton, Schoepfia schreberi J.F.Gmel., Schwalbea americana L., Schwetschkeopsis fabronia (Schwägr.) Broth., Scirpus ancistrochaetus Schuyler, Scirpus atrocinctus Fernald, Scirpus atrovirens Willd., Scirpus congdonii Britton, Scirpus cyperinus (L.) Kunth, Scirpus diffusus Schuyler, Scirpus divaricatus Elliott, Scirpus expansus Fernald, Scirpus flaccidifolius (Fernald) Schuyler, Scirpus georgianus R.M.Harper, Scirpus hattorianus Makino, Scirpus lineatus Michx., Scirpus longii Fernald, Scirpus microcarpus J.Presl & C.Presl, Scirpus nevadensis S.Watson, Scirpus pallidus (Britton) Fernald, Scirpus pedicellatus Fernald, Scirpus pendulus Muhl., Scirpus polyphyllus Vahl, Sciuro-hypnum curtum (Lindb.) Ignatov, Sciuro-hypnum glaciale (Schimp.) Ignatov & Huttunen, Sciuro-hypnum hylotapetum (B.L.Higinb. & N.L.Higinb.) Ignatov & Huttunen, Sciuro-hypnum latifolium (Kindb.) Ignatov & Huttunen, Sciuro-hypnum oedipodium (Mitt.) Ignatov & Huttunen, Sciuro-hypnum plumosum (Hedw.) Ignatov & Huttunen, Sciuro-hypnum populeum (Hedw.) Ignatov & Huttunen, Sciuro-hypnum reflexum (Starke) Ignatov & Huttunen, Sciuro-hypnum starkei (Brid.) Ignatov & Huttunen, Scleria baldwinii (Torr.) Steud., Scleria ciliata Michx., Scleria georgiana Core, Scleria minor (Britton) W.Stone, Scleria muehlenbergii Steud., Scleria nutans Willd. ex Kunth, Scleria oligantha Michx., Scleria pauciflora Muhl. ex Willd., Scleria reticularis Michx., Scleria testacea Nees ex Kunth, Scleria triglomerata Michx., Scleria verticillata Muhl. ex Willd., Sclerocactus blainei S.L.Welsh & K.H.Thorne, Sclerocactus brevihamatus (Engelm.) D.R.Hunt, Sclerocactus brevispinus K.D.Heil & J.M.Porter, Sclerocactus cloverae K.D.Heil & J.M.Porter, Sclerocactus glaucus (K.Schum.) L.D.Benson, Sclerocactus mesae-verdae (Boissev. & C.Davidson) L.D.Benson, Sclerocactus nyensis Hochstätter, Sclerocactus papyracanthus (Engelm.) N.P.Taylor, Sclerocactus parviflorus Clover & Jotter, Sclerocactus polyancistrus (Engelm. & J.M.Bigelow) Britton & Rose, Sclerocactus pubispinus (Engelm.) L.D.Benson, Sclerocactus scheerii (Salm-Dyck) N.P.Taylor, Sclerocactus sileri (L.D.Benson) K.D.Heil & J.M.Porter, Sclerocactus spinosior (Engelm.) D.Woodruff & L.D.Benson, Sclerocactus uncinatus (Galeotti) N.P.Taylor, Sclerocactus wetlandicus Hochstätter, Sclerocactus whipplei (Engelm. & J.M.Bigelow) Britton & Rose, Sclerocactus wrightiae L.D.Benson, Sclerolepis uniflora (Walter) Britton, Sterns & Poggenb., Sclerolinon digynum (A.Gray) C.M.Rogers, Scleropodium californicum (Lesq.) Kindb., Scleropodium occidentale B.E.Carter, Scleropodium touretii (Brid.) L.F.Koch, Scleropogon brevifolius Phil., Scoliopus bigelovii Torr., Scolochloa festucacea (Willd.) Link, Scopelophila cataractae (Mitt.) Broth., Scopelophila ligulata (Spruce) Spruce, Scopulophila rixfordii (Brandegee) Munz & I.M.Johnst., Scorpidium cossonii (Schimp.) Hedenäs, Scorpidium revolvens (Sw.) Rubers, Scorpidium scorpioides (Hedw.) Limpr., Scouleria aquatica Hook., Scouleria marginata E.Britton, Scribneria bolanderi (Thurb.) Hack., Scrophularia atrata Pennell, Scrophularia laevis Wooton & Standl., Scrophularia lanceolata Pursh, Scrophularia macrantha Greene ex Stiefelh., Scrophularia marilandica L., Scrophularia villosa Pennell ex Millsp. & Nuttall, 1923, Scutellaria alabamensis Alexander, Scutellaria altamaha Small, Scutellaria antirrhinoides Benth., Scutellaria arenicola Small, Scutellaria arguta Buckley, Scutellaria brittonii Porter, Scutellaria bushii Britton, Scutellaria cardiophylla Engelm. & A.Gray, Scutellaria drummondii Benth., Scutellaria elliptica Muhl., Scutellaria floridana Chapm., Scutellaria galericulata L., Scutellaria glabriuscula Fernald, Scutellaria havanensis Jacq., Scutellaria incana Spreng., Scutellaria integrifolia L., Scutellaria laevis Shinners, Scutellaria lateriflora L., Scutellaria montana Chapm., Scutellaria multiglandulosa (Kearney) Small ex Harper, Scutellaria nana A.Gray, Scutellaria nervosa Pursh, Scutellaria ocmulgee Small, Scutellaria ovata Hill, Scutellaria parvula Michx., Scutellaria potosina Brandegee, Scutellaria pseudoserrata Epling, Scutellaria sapphirina (Barneby) Olmstead, Scutellaria saxatilis Riddell, Scutellaria serrata Andrews, Scutellaria tessellata Epling, Scutellaria thieretii Shinners, Sedella leiocarpa Sharsm., Sedella pentandra Sharsm., Sedella pumila (Benth.) Britton & Rose, Sedum albomarginatum R.T.Clausen, Sedum borschii (R.T.Clausen) R.T.Clausen, Sedum citrinum Zika, Sedum cockerellii Britton, Sedum debile S.Watson, Sedum divergens S.Watson, Sedum eastwoodiae (Britton) A.Berger, Sedum flavidum (Denton) B.L.Wilson & Zika, Sedum glaucophyllum R.T.Clausen, Sedum havardii Rose, Sedum lanceolatum Torr., Sedum leibergii Britton, Sedum marmorense Otting & R.E.Brainerd, Sedum moranii R.T.Clausen, Sedum nevii A.Gray, Sedum niveum Davidson, Sedum nuttallii Torr. & E.James ex Eaton, Sedum oblanceolatum R.T.Clausen, Sedum oreganum Nutt. ex Torr. & A.Gray, Sedum paradisum (Denton) Denton ex B.L.Wilson, Sedum patens Zika, Sedum pulchellum Michx., Sedum pusillum Michx., Sedum robertsianum Alexander, Sedum rubiginosum Zika & B.L.Wilson, Sedum rupicola G.N.Jones, Sedum sanhedrinum A.Berger, Sedum stelliforme S.Watson, Sedum stenopetalum Pursh, Sedum ternatum Michx., Sedum valens Björk, Sedum villosum L., Sedum wrightii A.Gray, Selaginella apoda (L.) Spring, Selaginella arbuscula (Kaulf.) Spring, Selaginella arenicola Underw., Selaginella armata Baker, Selaginella cinerascens A.A.Eaton, Selaginella deflexa Brack., Selaginella densa Rydb., Selaginella douglasii (Hook. & Grev.) Spring, Selaginella eatonii Hieron. ex Small, Selaginella eclipes W.R.Buck, Selaginella eremophila Maxon, Selaginella hansenii Hieron., Selaginella leucobryoides Maxon, Selaginella ludoviciana (A.Braun) A.Braun, Selaginella mutica D.C.Eaton ex Underw., Selaginella mutica var. mutica, Selaginella oregana D.C.Eaton, Selaginella pilifera A.Braun, Selaginella rupestris (L.) Spring, Selaginella selaginoides (L.) Schrank & C.F.P.Mart., Selaginella tortipila A.Braun, Selaginella underwoodii Hieron., Selaginella utahensis Flowers, Selaginella viridissima Weath., Selaginella wallacei Hieron., Selaginella watsonii Underw., Selaginella weatherbiana R.M.Tryon, Selenia aurea Nutt., Selenia grandis R.F.Martin, Selenia jonesii Cory, Seligeria acutifolia Lindb., Seligeria brevifolia (Lindb.) Lindb. & Arnell, Seligeria calcarea (Hedw.) Bruch & Schimp., Seligeria campylopoda Kindb., Seligeria careyana Vitt & W.B.Schofield, Seligeria diversifolia Lindb., Seligeria donniana (Sm.) C.Müll., Seligeria oelandica C.E.O.Jensen & Medelius, Seligeria polaris Berggr., Seligeria pusilla (Hedw.) Bruch & Schimp., Seligeria recurvata (Hedw.) Bruch & Schimp., Seligeria subimmersa Lindb., Seligeria tristichoides Kindb., Selinocarpus lanceolatus Wooton, Selinocarpus maloneanus B.L.Turner, Selinocarpus nevadensis (Standl.) B.A.Fowler & B.L.Turner, Sematophyllum adnatum (Michx.) E.Britton, Sematophyllum demissum (Wilson) Mitt., Sematophyllum marylandicum (A.Jaeger) E.Britton, Senecio L., Senecio amplectens A.Gray, Senecio ampullaceus Hook., Senecio aphanactis Greene, Senecio astephanus Greene, Senecio atratus Greene, Senecio bigelovii A.Gray, Senecio bigelovii var. hallii A.Gray, Senecio blochmaniae Greene, Senecio cannabifolius Less., Senecio castoreus S.L.Welsh, Senecio congestus (R.Br.) DC., Senecio crassulus A.Gray, Senecio L., Senecio dimorphophyllus var. intermedius T.M.Barkley, 1962, Senecio elmeri Piper, Senecio eremophilus Richards., Senecio ertterae T.M.Barkley, Senecio fremontii Torr. & A.Gray, Senecio fremontii var. inexpectatus Cronquist, Senecio hydrophiloides Rydb., Senecio hydrophilus Nutt., Senecio integerrimus Nutt., Senecio lugens Richards., Senecio lyonii A.Gray ex Lyon, Senecio malmstenii S.F.Blake, 1923, Senecio megacephalus Nutt., Senecio multidentatus Sch.Bip. ex Hemsl., Senecio musiniensis S.L.Welsh, Senecio neowebsteri S.F.Blake, Senecio parryi A.Gray, Senecio pattersonensis Hoover, Senecio pseudoarnica Less., Senecio pudicus Greene, Senecio rapifolius Nutt., Senecio riddellii Torr. & A.Gray, Senecio sacramentanus Wooton & Standl., Senecio serra Hook., Senecio sheldonensis A.E.Porsild, Senecio soldanella A.Gray, Senecio spartioides Torr. & A.Gray, Senecio sphaerocephalus Greene, Senecio taraxacoides (A.Gray) Greene, Senecio warnockii Shinners, Senecio wootonii Greene, Senna armata (S.Watson) H.S.Irwin & Barneby, Senna covesii (A.Gray) H.S.Irwin & Barneby, Senna hebecarpa (Fernald) H.S.Irwin & Barneby, Senna marilandica (L.) Link, Senna obtusifolia (L.) H.S.Irwin & Barneby, Senna orcuttii (Britton & Rose) H.S.Irwin & Barneby, Senna ripleyana (H.S.Irwin & Barneby) H.S.Irwin & Barneby, Senna wislizeni (A.Gray) H.S.Irwin & Barneby, Sequoia sempervirens (D.Don) Endl., Sequoiadendron giganteum (Lindl.) J.T.Buchholz, Serenoa repens (W.Bartram) Small, Sericocarpus asteroides (L.) Britton, Stern & Poggenb., Sericocarpus linifolius (L.) Britton, Sterns & Poggenb., Sericocarpus rigidus Lindl., Sesbania exaltata (Raf.) Cory, Sesbania tomentosa Hook. & Arn., Sesuvium maritimum (Walter) Britton, Sterns & Poggenb., Sesuvium portulacastrum (L.) L., Sesuvium verrucosum Raf., Setaria arizonica Rominger, Setaria corrugata (Elliott) Schult., Setaria magna Griseb., Setaria parviflora (Poir.) Kerguélen, Setaria texana Emery, Setaria villosissima (Scribn. & Merr.) K.Schum., Seymeria bipinnatisecta Seem., Seymeria cassioides (J.F.Gmel.) S.F.Blake, Seymeria texana (A.Gray) Pennell, Shepherdia argentea (Pursh) Nutt., Shepherdia canadensis (L.) Nutt., Shepherdia rotundifolia Parry, Shinnersoseris rostrata (A.Gray) Tomb, Shortia galacifolia Torr. & A.Gray, Shoshonea pulvinata Evert & Constance, Sibara deserti (M.E.Jones) Rollins, Sibara filifolia (Greene) Greene, Sibara grisea Rollins, Sibara rosulata Rollins, Sibara virginica (L.) Rollins, Sibaropsis hammittii S.Boyd & T.S.Ross, Sibbaldia procumbens L., Sibbaldiopsis tridentata (Aiton) Rydb., Sicyos alba (H.St.John) I.Telford, Sicyos ampelophyllus Wooton & Standl., Sicyos angulatus L., Sicyos anunu (St.John) I.Telford, Sicyos cucumerinus A.Gray, Sicyos erostratus H.St.John, Sicyos glaber Wooton, Sicyos herbstii (H.St.John) I.Telford, Sicyos hispidus Hillebr., Sicyos laciniatus L., Sicyos lasiocephalus Skottsb., Sicyos macrophylla A.Gray, Sicyos maximowiczii Cogn., Sicyos microphyllus Kunth, Sicyos waimanaloensis H.St.John, Sicyosperma gracile A.Gray, Sida elliottii Torr. & A.Gray, Sida fallax Walp., Sida hermaphrodita Linnaeus, 1753, Sida inflexa Fernald, Sidalcea candida A.Gray, Sidalcea covillei Greene, Sidalcea hendersonii S.Watson, Sidalcea hickmanii Greene, Sidalcea hirsuta A.Gray, Sidalcea hirtipes C.L.Hitchc., Sidalcea keckii Wiggins, Sidalcea malachroides (Hook. & Arn.) A.Gray, Sidalcea multifida Greene, Sidalcea nelsoniana Piper, Sidalcea neomexicana A.Gray, Sidalcea oregana (Nutt. ex Torr. & A.Gray) Gray, Sidalcea pedata A.Gray, Sidalcea ranunculacea Greene, Sidalcea robusta A.Heller, Sidalcea stipularis J.T.Howell & True, Sideroxylon alachuense L.C.Anderson, Sideroxylon celastrinum (Kunth) T.D.Penn., Sideroxylon lanuginosum Michx., Sideroxylon lycioides L., Sideroxylon reclinatum Michx., Sideroxylon salicifolium (L.) Lam., Sideroxylon tenax L., Sideroxylon thornei (Cronquist) T.D.Penn., Silene acaulis (L.) Jacq., Silene alexandri Hillebr., Silene antirrhina L., Silene bernardina S.Watson, Silene bolanderi A.Gray, Silene caroliniana Walter, Silene clokeyi C.L.Hitchc. & Maguire, Silene douglasii Hook., Silene drummondii Hook., Silene hawaiiensis Sherff, Silene hookeri Nutt. ex Torr. & A.Gray, Silene involucrata (Cham. & Schltdl.) Bocquet, Silene kingii (S.Watson) Bocquet, Silene lanceolata A.Gray, Silene lemmonii S.Watson, Silene macrosperma (A.E.Porsild) Hultén, Silene marmorensis Kruckeb., Silene menziesii Hook., Silene nachlingerae A.Tiehm, Silene nelsonii Mesler, M.S.Mayer & Carothers, Silene nivea (Nutt.) Muhl., Silene oregana S.Watson, Silene ovata Pursh, Silene parishii S.Watson, Silene parryi (S.Watson) C.L.Hitchc. & Maguire, Silene perlmanii W.L.Wagner, D.R.Herbst & Sohmer, Silene petersonii Maguire, Silene plankii C.L.Hitchc. & Maguire, Silene polypetala (Walter) Fernald & B.G.Schub., Silene rectiramea Rob., Silene regia Sims, Silene repens Patrin, Silene rotundifolia Nutt., Silene salmonacea T.W.Nelson, J.P.Nelson & S.A.Erwin, Silene scaposa S.Watson, Silene scaposa var. lobata C.L.Hitchc. & Maguire, Silene scouleri Hook., Silene seelyi Morton & J.W.Thomps., Silene serpentinicola T.W.Nelson & J.P.Nelson, Silene sorensenis (Boivin) Bocquet, Silene spaldingii S.Watson, Silene stellata (L.) Coyte, Silene struthioloides A.Gray, Silene subciliata Rob., Silene suksdorfii Rob., Silene thurberi S.Watson, Silene uralensis (Rupr.) Bocquet, Silene uralensis subsp. montana (S.Watson) McNeill, Silene verecunda S.Watson, Silene virginica L., Silene wrightii A.Gray, Silphium brachiatum Gatt., Silphium compositum Michx., Silphium glutinosum J.R.Allison, Silphium gracile A.Gray, Silphium integrifolium Michx., Silphium laciniatum L., Silphium mohrii Small, Silphium perfoliatum L., Silphium pinnatifidum T.Nees, Silphium radula Nutt., Silphium reverchonii Bush, Silphium simpsonii Greene, Silphium terebinthinaceum Jacq., Silphium trifoliatum L., Silphium wasiotense Medley, Simarouba glauca DC., Simmondsia chinensis (Link) C.K.Schneid., Siphonoglossa longiflora (Torr.) A.Gray, Sisyrinchium acre H.Mann, Sisyrinchium albidum Raf., Sisyrinchium angustifolium Mill., Sisyrinchium arizonicum Rothr., Sisyrinchium atlanticum E.P.Bicknell, Sisyrinchium campestre E.P.Bicknell, Sisyrinchium capillare E.P.Bicknell, Sisyrinchium cernuum (E.P.Bicknell) Kearney, Sisyrinchium demissum Greene, Sisyrinchium dichotomum E.P.Bicknell, Sisyrinchium ensigerum E.P.Bicknell, Sisyrinchium funereum E.P.Bicknell, Sisyrinchium fuscatum E.P.Bicknell, Sisyrinchium hitchcockii Douglass M.Hend., Sisyrinchium idahoense E.P.Bicknell, Sisyrinchium langloisii Greene, Sisyrinchium longipes (E.P.Bicknell) Kearney & Peebles, Sisyrinchium minus Engelm. & A.Gray, Sisyrinchium montanum Greene, Sisyrinchium mucronatum Michx., Sisyrinchium pallidum Cholewa & Douglass M.Hend., Sisyrinchium radicatum E.P.Bicknell, Sisyrinchium rosulatum E.P.Bicknell, Sisyrinchium sarmentosum Suksd. ex Greene, Sisyrinchium septentrionale E.P.Bicknell, Sisyrinchium xerophyllum Greene, Sium carsonii Durand ex A.Gray, Sium suave Walter, Smallanthus uvedalia (L.) Mack., Smelowskia americana (Regel & Herder) Rydb., Smelowskia borealis (Greene) W.H.Drury & Rollins, Smelowskia johnsonii G.A.Mulligan, Smelowskia media (W.H.Drury & Rollins) Velichkin, Smelowskia ovalis M.E.Jones, Smelowskia porsildii (W.H.Drury & Rollins) Jurtzev, Smelowskia pyriformis W.H.Drury & Rollins, Smilax auriculata Walter, Smilax biltmoreana (Small) J.B.Norton ex Pennell, Smilax bona-nox L., Smilax californica (A.DC.) A.Gray, Smilax ecirrhata (Engelm. ex Kunth) S.Watson, Smilax glauca Walter, Smilax herbacea L., Smilax hugeri (Small) J.B.Norton ex Pennell, Smilax illinoensis Mangaly, Smilax jamesii G.A.Wallace, Smilax lasioneura Hook., Smilax laurifolia L., Smilax melastomifolia Sm., Smilax pseudochina L., Smilax pulverulenta Michx., Smilax renifolia Small, Smilax rotundifolia L., Smilax tamnoides L., Smilax walteri Pursh, Solanum clokeyi Munz, Solanum conocarpum Dunal ex Poir., Solanum davisense Whalen, Solanum dimidiatum Raf., Solanum donianum Walp., Solanum drymophilum O.E.Schulz, Solanum heterodoxum Dunal, Solanum incompletum Dunal, Solanum jamesii Torr., Solanum leptosepalum Correll, Solanum lumholtzianum B.L.Rob., Solanum nelsonii Dunal, Solanum nigrescens M.Martens & Galeotti, Solanum parishii A.Heller, Solanum pseudogracile Heiser, Solanum ptychanthum Dunal, Solanum rostratum Dunal, Solanum sandwicense Hook. & Arn., Solanum tenuilobatum Parish, Solanum triflorum Nutt., Solanum wallacei (A.Gray) Parish, Solanum woodburyi R.A.Howard, Solenostoma appalachianum R.M.Schust. ex Bakalin, Solenostoma confertissimum (Nees) Schljakov, Solenostoma crenuliforme (Austin) Steph., Solenostoma fossombronioides (Austin) R.M.Schust., Solenostoma gracillimum (Sm.) R.M.Schust., Solenostoma hyalinum (Lyell) Mitt., Solenostoma obovatum (Nees) C.Massal., Solenostoma obscurum (A.Evans) R.M.Schust., Solenostoma rubrum (Gottsche ex Underw.) R.M.Schust., Solenostoma schusterianum (J.D.Godfrey & G.Godfrey) Váňa, Hentschel & Heinrichs, Solenostoma sphaerocarpum (Hook.) Steph., Solidago albopilosa E.L.Braun, Solidago altissima L., Solidago arguta Aiton, Solidago auriculata Shuttlew. ex S.F.Blake, Solidago bicolor L., Solidago brachyphylla Chapm. ex Torr. & A.Gray, Solidago buckleyi Torr. & A.Gray, Solidago caesia L., Solidago capulinensis Cockerell & D.M.Andrews, Solidago curtisii Torr. & A.Gray, Solidago deamii Fernald, Solidago discoidea (Elliott) Torr. & A.Gray, Solidago erecta Banks ex Pursh, Solidago flaccidifolia Small, Solidago flexicaulis L., Solidago gattingeri Chapm. ex A.Gray, Solidago georgiana Semple, Solidago gigantea Aiton, Solidago glomerata Michx., Solidago gracillima Torr. & A.Gray, Solidago guiradonis A.Gray, Solidago hispida Muhl. ex Willd., Solidago houghtonii Torr. & A.Gray ex A.Gray, Solidago juncea Aiton, Solidago lancifolia (Torr. & A.Gray) Chapm., Solidago latissimifolia Mill., Solidago leavenworthii Torr. & A.Gray, Solidago leiocarpa DC., Solidago macrophylla Banks ex Pursh, Solidago missouriensis Nutt., Solidago mollis Bartl., Solidago multiradiata Aiton, Solidago nana Nutt., Solidago nemoralis Aiton, Solidago odora Aiton, Solidago ouachitensis C.E.S. & R.J.Taylor, Solidago patula Muhl., Solidago petiolaris Aiton, Solidago pinetorum Small, Solidago plumosa Small, Solidago porteri Small, Solidago puberula Nutt., Solidago pulchra Small, Solidago radula Nutt., Solidago roanensis Porter, Solidago rupestris Raf., Solidago sciaphila Steele, Solidago sempervirens L., Solidago shortii Torr. & A.Gray, Solidago simplex Kunth, Solidago simulans Fernald, Solidago speciosa Nutt., Solidago spectabilis (D.C.Eaton) A.Gray, Solidago sphacelata Raf., Solidago spithamaea M.A.Curtis ex A.Gray, Solidago squarrosa Muhl., Solidago stricta Aiton, Solidago tortifolia Elliott, Solidago uliginosa Nutt., Solidago ulmifolia Muhl. ex Willd., Solidago velutina DC., Solidago verna M.A.Curtis, Solidago vossii J.S.Pringle & Laureto, Solidago wrightii A.Gray, Solorina spongiosa (Ach.) Anzi, Sophora affinis Torr. & A.Gray, Sophora arizonica S.Watson, Sophora chrysophylla (Salisb.) Seem., Sophora gypsophila B.L.Turner & A.M.Powell, Sophora leachiana M.E.Peck, Sophora nuttalliana B.L.Turner, Sophora stenophylla A.Gray, Sophora tomentosa L., Sorbus americana Marshall, Sorbus scopulina Greene, Sorbus sitchensis M.Roem., Sorghastrum apalachicolense D.W.Hall, Sorghastrum elliottii (C.Mohr) Nash, Sorghastrum nutans (L.) Nash, Sparganium americanum Nutt., Sparganium androcladum (Engelm.) Morong, Sparganium angustifolium Michx., Sparganium eurycarpum Engelm., Sparganium fluctuans (Engelm.) B.L.Rob., Sparganium glomeratum (Laest. ex Beurl.) Beurl., Sparganium hyperboreum Laest. ex Beurl., Sparganium natans L., Spartina alterniflora Loisel., Spartina cynosuroides (L.) Roth, Spartina foliosa Trin., Spartina gracilis Trin., Spartina patens (Aiton) Muhl., Spartina pectinata Bosc ex Link, Spergularia canadensis (Pers.) G.Don, Spergularia salina J. & K.Presl, Spermacoce L., Spermacoce floridana Gand., Spermacoce glabra Michx., Spermacoce L., Spermolepis diffusa (Nutt. ex DC.) G.L.Nesom, Spermolepis divaricata (Walter) Britton, Spermolepis echinata (Nutt.) A.Heller, Spermolepis gigantea (J.M.Coult. & Rose) G.L.Nesom, Spermolepis hawaiiensis H.Wolff, Spermolepis inermis (Nutt. ex DC.) Mathias & Constance, Spermolepis infernensis G.L.Nesom, Spermolepis organensis G.L.Nesom, Sphaeralcea angustifolia (Cav.) G.Don, Sphaeralcea caespitosa M.E.Jones, Sphaeralcea coccinea (Nutt.) Rydb., Sphaeralcea fumariensis (S.L.Welsh & N.D.Atwood) N.D.Atwood & S.L.Welsh, Sphaeralcea gierischii N.D.Atwood & S.L.Welsh, Sphaeralcea janeae (S.L.Welsh) S.L.Welsh, Sphaeralcea leptophylla (A.Gray) Rydb., Sphaeralcea moorei (S.L.Welsh) N.D.Atwood & S.L.Welsh, Sphaeralcea munroana (Douglas ex Lindl.) Spach, Sphaeralcea psoraloides S.L.Welsh, Sphaeralcea rusbyi A.Gray, Sphaeralcea wrightii A.Gray, Sphaerocarpos cristatus M.Howe, Sphaerocarpos donnellii Austin, Sphaerocarpos drewiae Wigglesw., Sphaerocarpos hians Haynes, Sphaerocarpos texanus Austin, Sphaeromeria argentea Nutt., Sphaeromeria cana (D.C.Eaton) A.Heller, Sphaeromeria capitata Nutt., Sphaeromeria compacta (H.M.Hall) A.H.Holmgren, L.M.Shultz & Lowrey, Sphaeromeria diversifolia (D.C.Eaton) Rydb., Sphaeromeria potentilloides (A.Gray) A.Heller, Sphaeromeria potentilloides var. nitrophila (Cronquist) A.H.Holmgren, L.M.Shultz & Lowrey, Sphaeromeria ruthiae A.H.Holmgren, L.M.Shultz & Lowrey, Sphaeromeria simplex (A.Nelson) A.Heller, Sphaerosporoceros adscendens (Lehm. & Lindenb.) Hässel, Sphagnum L., Sphagnum affine Renauld & Cardot, Sphagnum alaskense R.E.Andrus & Janssens, Sphagnum andersonianum R.E.Andrus, Sphagnum angermanicum Melin, Sphagnum angustifolium (Russow) C.E.O.Jensen, Sphagnum annulatum H.Lindb. ex Warnst., Sphagnum aongstroemii C.Hartm., Sphagnum arcticum Flatberg & Frisvoll, Sphagnum atlanticum R.E.Andrus, Sphagnum austinii Sull., Sphagnum balticum (Russow) C.E.O.Jensen, Sphagnum bartlettianum Warnst., Sphagnum bergianum R.E.Andrus, Sphagnum capillifolium (Ehrh.) Hedw., Sphagnum carolinianum R.E.Andrus, Sphagnum centrale C.E.O.Jensen, Sphagnum compactum DC., Sphagnum contortum Schultz, Sphagnum cribrosum Lindb., Sphagnum cuspidatum Ehrh. ex Hoffm., Sphagnum cyclophyllum Sull. & Lesq., Sphagnum fallax (H.Klinggr.) H.Klinggr., Sphagnum fimbriatum Wilson, Sphagnum fitzgeraldii Renauld, Sphagnum flavicomans (Cardot) Warnst., Sphagnum flexuosum Dozy & Molk., Sphagnum fuscum (Schimp.) H.Klinggr., Sphagnum girgensohnii Russow, Sphagnum henryense Warnst., Sphagnum imbricatum Hornsch. ex Russow, Sphagnum inexspectatum Flatberg, Sphagnum inundatum Russow, Sphagnum isoviitae Flatberg, Sphagnum jensenii H.Lindb., Sphagnum junghuhnianum Dozy & Molk., Sphagnum lenense H.Lindberg ex Savicz-Ljubitskaya, 1936, Sphagnum lescurii Sull., Sphagnum lindbergii Schimp., Sphagnum macrophyllum Bernh. ex Brid., Sphagnum magellanicum Brid., Sphagnum majus (Russow) C.E.O.Jensen, Sphagnum mcqueenii R.E.Andrus, Sphagnum mendocinum Sull. & Lesq., Sphagnum mirum Flatberg & Thingsgaard, Sphagnum molle Sull., Sphagnum obtusum Warnst., Sphagnum oregonense R.E.Andrus, Sphagnum orientale Savicz-Ljubitskaya, 1951, Sphagnum palustre L., Sphagnum papillosum Lindb., Sphagnum perfoliatum L.I.Savicz, Sphagnum perichaetiale Hampe, Sphagnum platyphyllum (Lindb. ex Braithw.) Sull. ex Warnst., Sphagnum portoricense Hampe, Sphagnum pulchrum (Lindb.) Warnst., Sphagnum pylaesii Brid., Sphagnum quinquefarium (Lindb.) Warnst., Sphagnum recurvum P.Beauv., Sphagnum riparium Ångstr., Sphagnum rubellum Wilson, Sphagnum rubiginosum Flatberg, Sphagnum rubroflexuosum R.E.Andrus, Sphagnum russowii Warnst., Sphagnum splendens Maass, Sphagnum squarrosum Crome, Sphagnum steerei R.E.Andrus, Sphagnum strictum Sull., Sphagnum subfulvum Sjörs, Sphagnum subnitens Russow & Warnst., Sphagnum subsecundum Nees, Sphagnum subtile (Russow) Warnst., Sphagnum tenellum (Brid.) Pers. ex Brid., Sphagnum tenerum Sull. & Lesq., Sphagnum teres (Schimp.) Ångstr., Sphagnum torreyanum Sull., Sphagnum trinitense C.Müller, 1848, Sphagnum tundrae Flatberg, Sphagnum viride Flatberg, Sphagnum warnstorfii Russow, Sphagnum wilfii H.A.Crum, Sphagnum wulfianum Girg., Sphenolobopsis pearsonii (Spruce) R.M.Schust., Sphenolobus minutus (Schreb. ex Cranz) Berggr., Sphenolobus saxicola (Schrad.) Steph., Sphenomeris chinensis Linnaeus, 1753, Sphenomeris clavata (L.) Maxon, Sphenopholis filiformis (Chapm.) Scribn., Sphenopholis intermedia (Rydb.) Rydb., Sphenopholis longiflora (Vasey ex L.H.Dewey) Hitchc., Sphenopholis nitida (Biehler) Scribn., Sphenopholis obtusata (Michx.) Scribn., Sphenopholis pensylvanica (L.) Hitchc., Sphenopholis ×pallens (Biehler) Scribn., Sphinctospermum constrictum (S.Watson) Rose, Spigelia alabamensis (K.Gould) K.G.Mathews & Weakley, Spigelia gentianoides Chapm. ex A.DC., Spigelia loganioides (Torr. & A.Gray) A.DC., Spigelia marilandica (L.) L., Spigelia texana (Torr. & A.Gray) A.DC., Spiraea alba Du Roi, Spiraea betulifolia Pall., Spiraea douglasii Hook., Spiraea splendens Baumann ex K.Koch, Spiraea stevenii (C.K.Schneid.) Rydb., Spiraea tomentosa L., Spiraea virginiana Britton, Spiraea ×pyramidata Greene, Spiranthes Rich., Spiranthes brevilabris Lindl., Spiranthes casei Catling & Cruise, Spiranthes cernua (L.) Rich., Spiranthes confusa (Garay) Kartesz & Gandhi, Spiranthes costaricensis Rchb.f., Spiranthes cranichoides (Griseb.) Cogn., Spiranthes delitescens Sheviak, Spiranthes diluvialis Sheviak, Spiranthes eatonii Ames ex P.M.Br., Spiranthes floridana (Wherry) Cory, Spiranthes igniorchis M.C.Pace, Spiranthes infernalis Sheviak, Spiranthes lacera (Raf.) Raf., Spiranthes laciniata (Small) Ames, Spiranthes lanceolata (Aubl.) León, Spiranthes longilabris Lindl., Spiranthes lucida (H.H.Eaton) Ames, Spiranthes magnicamporum Sheviak, Spiranthes michuacana (Lex.) Hemsl., Spiranthes ochroleuca (Rydb.) Rydb., Spiranthes odorata (Nutt.) Lindl., Spiranthes ovalis Lindl., Spiranthes parksii Correll, Spiranthes porrifolia Lindl., Spiranthes praecox (Walter) S.Watson, Spiranthes romanzoffiana Cham., Spiranthes torta (Thunb.) Garay & H.R.Sweet, Spiranthes tuberosa Raf., Spiranthes vernalis Engelm. & A.Gray, Spirodela polyrhiza (L.) Schleid., Spirodela polyrhiza (L.) Schleid., Spirodela punctata (G.Mey.) C.H.Thomps., Splachnum ampullaceum Hedw., Splachnum luteum Hedw., Splachnum pensylvanicum (Brid.) Grout ex H.A.Crum, Splachnum rubrum Hedw., Splachnum sphaericum Hedw., Splachnum vasculosum Hedw., Sporobolus airoides (Torr.) Torr., Sporobolus buckleyi Vasey, Sporobolus clandestinus (Biehler) Hitchc., Sporobolus compositus (Poir.) Merr., Sporobolus compositus var. compositus, Sporobolus cryptandrus (Torr.) A.Gray, Sporobolus curtissii Small ex Kearney, Sporobolus flexuosus (Vasey) Rydb., Sporobolus floridanus Chapm., Sporobolus giganteus Nash, Sporobolus heterolepis (A.Gray) A.Gray, Sporobolus interruptus Vasey, Sporobolus junceus (P.Beauv.) Kunth, Sporobolus nealleyi Vasey, Sporobolus neglectus Nash, Sporobolus pinetorum Weakley & P.M.Peterson, Sporobolus pyramidatus (Lam.) Hitchc., Sporobolus silveanus Swallen, Sporobolus teretifolius R.M.Harper, Sporobolus texanus Vasey, Sporobolus tharpii Hitchc., Sporobolus vaginiflorus (Torr. ex A.Gray) Alph.Wood, Sporobolus virginicus (L.) Kunth, Stachydeoma graveolens (Chapm. ex A.Gray) Small, Stachys alabamica B.R.Keener & L.J.Davenp., Stachys albens A.Gray, Stachys aspera Michx., Stachys bigelovii A.Gray, Stachys caroliniana J.B.Nelson & D.A.Rayner, Stachys clingmanii Small, Stachys L., Stachys eplingii J.B.Nelson, Stachys hyssopifolia Michx., Stachys iltisii J.B.Nelson, Stachys latidens Small, Stachys matthewsii G.P.Fleming, J.B.Nelson & J.F.Towns., Stachys mexicana Benth., Stachys nelsonii B.R.Keener & L.J.Davenp., Stachys nuttallii Shuttlew. ex Benth., Stachys palustris L., Stachys pilosa Nutt., Stachys rothrockii A.Gray, Stachys tenuifolia Willd., Stahlia monosperma (Tul.) Urb., Stanfordia californica S.Watson, Stanleya albescens M.E.Jones, Stanleya confertiflora (B.L.Rob.) T.J.Howell, Stanleya tomentosa Parry, Stanleya viridiflora Nutt., Staphylea trifolia L., Stebbinsoseris decipiens (K.L.Chambers) K.L.Chambers, Stegonia hyalinotrichum Zander, 1993, Stegonia latifolia (Schwägr.) Venturi ex Broth., Steinchisma hians (Elliott) Nash, Stellaria alaskana Hultén, Stellaria alsine Grimm, Stellaria americana (Porter ex B.L.Rob.) Standl., Stellaria borealis Bigelow, Stellaria calycantha (Ledeb.) Bong., Stellaria corei Shinners, Stellaria crassifolia Ehrh., Stellaria crispa Cham. & Schltdl., Stellaria dicranoides (Cham. & Schltdl.) Fenzl, Stellaria fontinalis (Short & R.Peter) B.L.Rob., Stellaria humifusa Rottb., Stellaria irrigua Bunge, Stellaria littoralis Torr., Stellaria longifolia (Regel) Muhl. ex Willd., Stellaria longipes Goldie, Stellaria nitens Nutt., Stellaria obtusa Engelm., Stellaria oxyphylla B.L.Rob., Stellaria porsildii C.C.Chinnappa, Stellaria prostrata Baldwin, Stellaria pubera Michx., Stellaria ruscifolia Pall. ex D.F.K.Schltdl., Stellaria umbellata Turcz., Stemodia durantifolia (L.) Sw., Stenanthium gramineum (Ker Gawl.) Morong, Stenogonum salsuginosum Nutt., Stenogyne angustifolia A.Gray, Stenogyne bifida Hillebr., Stenogyne calaminthoides A.Gray, Stenogyne calycosa Sherff, Stenogyne campanulata Weller & Sakai, Stenogyne cranwelliae Sherff, Stenogyne kaalae Wawra, Stenogyne kamehamehae Wawra, Stenogyne kanehoana O.Deg. & Sherff, Stenogyne kealiae Wawra, Stenogyne macrantha Benth., Stenogyne microphylla Benth., Stenogyne purpurea H.Mann, Stenogyne rotundifolia A.Gray, Stenogyne rugosa Benth., Stenogyne scrophularioides Benth., Stenogyne sessilis Benth., Stenosiphon linifolium (Nutt. ex E.James) Heynh., Stenotaphrum secundatum (Walter) Kuntze, Stephanomeria blairii Munz & I.M.Johnst., Stephanomeria diegensis Gottlieb, Stephanomeria elata Nutt., Stephanomeria exigua Nutt., Stephanomeria fluminea Gottlieb, Stephanomeria malheurensis Gottlieb, Stephanomeria minor Nutt., Stephanomeria occultata Wellard & J.W.Baker, Stephanomeria parryi A.Gray, Stephanomeria pauciflora (Torr.) A.Nelson, Stephanomeria runcinata Nutt., Stephanomeria schottii (A.Gray) A.Gray, 1876, Stephanomeria spinosa (Nutt.) Tomb, Stephanomeria tenuifolia var. uintaensis Goodrich & S.L.Welsh, Stephanomeria thurberi A.Gray, Stephanomeria wrightii A.Gray, Stevia lemmonii A.Gray, Stevia micrantha Lag., Stevia plummerae A.Gray, Stewartia malacodendron L., Stewartia ovata (Cav.) Weath., Sticherus owhyensis (Hook.) Ching, Stictocardia tiliifolia (Desr.) Hallier fil., Stillingia aquatica Chapm., Stillingia linearifolia S.Watson, Stillingia spinulosa Torr., Stillingia sylvatica L., Stipulicida setacea Michx., Stokesia laevis (Hill) Greene, Straminergon stramineum (Dicks. ex Brid.) Hedenäs, Streblus pendulinus (Endl.) F.Muell., Streptanthella longirostris (S.Watson) Rydb., Streptanthus barbatus S.Watson, Streptanthus barbiger Greene, Streptanthus batrachopus J.L.Morrison, Streptanthus bernardinus (Greene) Parish, Streptanthus brachiatus F.W.Hoffm., Streptanthus bracteatus A.Gray, Streptanthus callistus J.L.Morrison, Streptanthus campestris S.Watson, Streptanthus carinatus C.Wright, Streptanthus cordatus Nutt., Streptanthus cutleri Cory, Streptanthus fenestratus (Greene) J.T.Howell, Streptanthus glandulosus Hook., Streptanthus gracilis Eastw., Streptanthus hesperidis Jeps., Streptanthus hispidus A.Gray, Streptanthus howellii S.Watson, Streptanthus hyacinthoides Hook., Streptanthus insignis Jeps., Streptanthus Nutt., Streptanthus maculatus Nutt., Streptanthus Nutt., Streptanthus morrisonii F.W.Hoffm., Streptanthus oliganthus Rollins, Streptanthus platycarpus A.Gray, Streptanthus sparsiflorus Rollins, Streptanthus squamiformis Goodman, Streptanthus vernalis R.O'Donnell & R.Dolan, Streptopus amplexifolius (L.) DC., Streptopus lanceolatus (Aiton) Reveal, Streptopus streptopoides (Ledeb.) Frye & Rigg, Stroganowia tiehmii Rollins, Strongylodon ruber Vogel, Strophostyles helvola (L.) Elliott, Strophostyles leiosperma (Torr. & A.Gray) Piper, Strophostyles umbellata (Muhl. ex Willd.) Britton, Strumpfia maritima Jacq., Stuckenia filiformis (Pers.) Börner, Stuckenia pectinata (L.) Börner, Stuckenia striata (Ruiz & Pav.) Holub, Stuckenia vaginata (Magnin) Holub, Stylisma abdita Myint, Stylisma aquatica (Walter) Raf., Stylisma humistrata (Walter) Chapm., Stylisma pickeringii (Torr. ex M.A.Curtis) A.Gray, Stylisma villosa (Nash) House, Stylocline citroleum Morefield, Stylocline intertexta Morefield, Stylocline masonii Morefield, Stylocline micropoides A.Gray, Stylocline psilocarphoides M.Peck, Stylocline sonorensis Wiggins, Stylodon carneus (Medik.) Moldenke, Stylophorum diphyllum (Michx.) Nutt., Stylosanthes biflora (L.) Britton, Sterns & Poggenb., Stylosanthes calcicola Small, Styphelia tameiameiae (Cham.) F.Muell., Styrax americanus Lam., Styrax grandifolium Aiton, Styrax platanifolius Engelm. ex Torr., Styrax portoricensis Krug & Urb., Suaeda calceoliformis (Hook.) Moq., Suaeda californica S.Watson, Suaeda esteroa Ferren & S.A.Whitmore, Suaeda linearis (Elliott) Moq., Suaeda maritima (L.) Dumort., Suaeda moquinii A.Nelson, Suaeda rolandii Bassett & Crompton, Suaeda tampicensis (Standl.) Standl., Subularia aquatica L., Suckleya suckleyana (Torr.) Rydb., Suksdorfia ranunculifolia (Hook.) Engl., Suksdorfia violacea A.Gray, Sullivantia hapemanii (J.M.Coult. & Fisher) Coult., Sullivantia hapemanii var. hapemanii, Sullivantia hapemanii var. purpusii (Brandegee) Soltis, Sullivantia oregana S.Watson, Sullivantia sullivantii (Torr. & A.Gray) Britton, Swallenia alexandrae (Swallen) Soderstr. & H.F.Decker, Swertia perennis L., Swietenia mahagoni (L.) Jacq., Symphoricarpos albus (L.) C.Koch, Symphoricarpos longiflorus A.Gray, Symphoricarpos occidentalis (R.Br.) Hook., Symphoricarpos orbiculatus Moench, Symphoricarpos oreophilus A.Gray, Symphyotrichum anomalum (Engelm.) G.L.Nesom, Symphyotrichum anticostense (Fernald) G.L.Nesom, Symphyotrichum ascendens (Lindl.) G.L.Nesom, Symphyotrichum boreale (Torr. & A.Gray) Á.Löve & D.Löve, Symphyotrichum bracei (Britton ex Small) G.L.Nesom, Symphyotrichum campestre (Nutt.) G.L.Nesom, Symphyotrichum ciliatum (Ledeb.) G.L.Nesom, Symphyotrichum ciliolatum (Lindl.) Á.Löve & D.Löve, Symphyotrichum concolor (L.) G.L.Nesom, Symphyotrichum cordifolium (L.) G.L.Nesom, Symphyotrichum cusickii (A.Gray) G.L.Nesom, Symphyotrichum defoliatum (Parish) G.L.Nesom, Symphyotrichum depauperatum (Fernald) G.L.Nesom, Symphyotrichum divaricatum (Nutt.) G.L.Nesom, Symphyotrichum drummondii (Lindl.) G.L.Nesom, Symphyotrichum dumosum (L.) G.L.Nesom, Symphyotrichum eatonii (A.Gray) G.L.Nesom, Symphyotrichum elliottii (Torr. & A.Gray) G.L.Nesom, Symphyotrichum ericoides (L.) G.L.Nesom, Symphyotrichum Nees, Symphyotrichum expansum (Poepp. ex Spreng.) G.L.Nesom, Symphyotrichum falcatum (Lindl.) G.L.Nesom, Symphyotrichum fendleri (A.Gray) G.L.Nesom, Symphyotrichum foliaceum (DC.) G.L.Nesom, Symphyotrichum fontinale (Alexander) G.L.Nesom, Symphyotrichum frondosum (Nutt.) G.L.Nesom, Symphyotrichum georgianum (Alexander ex Small) G.L.Nesom, Symphyotrichum grandiflorum (L.) G.L.Nesom, Symphyotrichum greatae (Parish) G.L.Nesom, Symphyotrichum hallii (A.Gray) G.L.Nesom, Symphyotrichum hendersonii (Fernald) G.L.Nesom, Symphyotrichum jessicae (R.Piper) G.L.Nesom, Symphyotrichum laeve (L.) Á.Löve & D.Löve, Symphyotrichum lanceolatum (Willd.) G.L.Nesom, Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve, Symphyotrichum laurentianum (Fernald) G.L.Nesom, Symphyotrichum lentum (Greene) G.L.Nesom, Symphyotrichum lowrieanum (Porter) G.L.Nesom, Symphyotrichum molle (Rydb.) G.L.Nesom, Symphyotrichum novae-angliae (L.) G.L.Nesom, Symphyotrichum novi-belgii (L.) G.L.Nesom, Symphyotrichum oblongifolium (Nutt.) G.L.Nesom, Symphyotrichum ontarionis (Wiegand) G.L.Nesom, Symphyotrichum oolentangiense (Riddell) G.L.Nesom, Symphyotrichum parviceps (E.S.Burgess) G.L.Nesom, Symphyotrichum phlogifolium (Muhl. ex Willd.) G.L.Nesom, Symphyotrichum plumosum (Small) Semple, Symphyotrichum porteri (A.Gray) G.L.Nesom, Symphyotrichum potosinum (A.Gray) G.L.Nesom, Symphyotrichum praealtum (Poir.) G.L.Nesom, Symphyotrichum pratense (Raf.) G.L.Nesom, Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom, Symphyotrichum ×priceae (Britton) G.L.Nesom, Symphyotrichum puniceum (L.) Á.Löve & D.Löve, Symphyotrichum racemosum (Elliott) G.L.Nesom, Symphyotrichum rhiannon Weakley & Govus, Symphyotrichum robynsianum (J.Rousseau) Brouillet & Labrecque, Symphyotrichum sericeum (Vent.) G.L.Nesom, Symphyotrichum shortii (Lindl.) G.L.Nesom, Symphyotrichum simmondsii (Small) G.L.Nesom, Symphyotrichum subspicatum (Nees) G.L.Nesom, Symphyotrichum subulatum (Michx.) G.L.Nesom, Symphyotrichum tenuifolium (L.) G.L.Nesom, Symphyotrichum tradescantii (L.) G.L.Nesom, Symphyotrichum turbinellum (Lindl.) G.L.Nesom, Symphyotrichum undulatum (L.) G.L.Nesom, Symphyotrichum urophyllum (DC.) G.L.Nesom, Symphyotrichum welshii (Cronquist) G.L.Nesom, Symphyotrichum ×schistosum (E.S.Steele) G.L.Nesom, Symphyotrichum yukonense (Cronquist) G.L.Nesom, Symplocarpus foetidus (L.) Salisb. ex W.P.C.Barton, Symplocos lanata Krug & Urb., Symplocos tinctoria (L.) L'Hér., Synandra hispidula (Michx.) Baill., Syngonanthus flavidulus (Michx.) Ruhland, Synthyris borealis Pennell, Synthyris canbyi Pennell, Synthyris laciniata (A.Gray) Rydb., Synthyris missurica (Raf.) Pennell, Synthyris pinnatifida S.Watson, Synthyris platycarpa Gail & Pennell, Synthyris ranunculina Pennell, Synthyris schizantha Piper, Syntrichia ammonsiana (H.A.Crum & L.E.Anderson) Ochyra, Syntrichia bartramii (Steere) R.H.Zander, Syntrichia cainii (H.A.Crum & L.E.Anderson) R.H.Zander, Syntrichia caninervis Mitt., Syntrichia fragilis (Taylor) Ochyra, Syntrichia laevipila Brid., Syntrichia latifolia Hübener, 1833, Syntrichia montana Nees, Syntrichia norvegica F.Weber, Syntrichia papillosa (Wilson) Jur., Syntrichia papillosissima (Copp.) Loeske, Syntrichia ruralis (Hedw.) F.Weber & D.Mohr, Syntrichopappus fremontii A.Gray, Syringodium filiforme Kütz., Syrrhopodon incompletus Schwägr., Syrrhopodon prolifer Schwägr., Syrrhopodon texanus Sull., Systenotheca vortriedei (Brandegee) Reveal & C.B.Hardham, Syzygiella autumnalis (DC.) K.Feldberg, Váňa, Hentschel & Heinrichs, Syzygiella nipponica (S.Hatt.) K.Feldberg, Váňa, Hentschel & Heinrichs, Syzygium sandwicense (A.Gray) Nied., Taenidia integerrima (L.) Drude, Taenidia montana (Mack.) Cronquist, Takakia ceratophylla (Mitt.) Grolle, Takakia lepidozioides S.Hatt. & Inoue, Talinum calcaricum S.Ware, Talinum calycinum Engelm., Talinum chrysanthum Rose & Standl., Talinum confertiflorum Greene, Talinum gooddingii P.Wilson, Talinum humile Greene, Talinum longipes Wooton & Standl., Talinum marginatum Greene, Talinum mengesii W.Wolf, Talinum parviflorum Nutt., Talinum pulchellum Wooton & Standl., Talinum rugospermum Holz., Talinum spinescens Torr., Talinum teretifolium (Raf.) Pursh, Talinum thompsonii N.D.Atwood & S.L.Welsh, Talinum validulum Greene, Tanacetum bipinnatum (L.) Sch.Bip., Tanacetum camphoratum Less., Taraxacum californicum Munz & I.M.Johnst., Taraxacum carneocoloratum A.Nelson, Taraxacum eriophorum Rydb., Taraxacum lyratum (Ledeb.) DC., Targionia hypophylla L., Tauschia hooveri Mathias & Constance, Tauschia howellii (J.M.Coult. & Rose) J.F.Macbr., Tauschia stricklandii (J.M.Coult. & Rose) Mathias & Constance, Tauschia tenuissima (Geyer ex Hook.) Mathias & Constance, Tauschia texana A.Gray, Taxiphyllum alternans (Cardot) Z.Iwats., Taxiphyllum cuspidifolium (Cardot) Z.Iwats., Taxiphyllum deplanatum (Bruch & Schimp. ex Sull.) M.Fleisch., Taxiphyllum taxirameum (Mitt.) M.Fleisch., Taxodium ascendens Brongn., Taxodium distichum (L.) Rich., Taxodium mucronatum Ten., Taxus brevifolia Nutt., Taxus canadensis Marshall, Taxus floridana Nutt. ex Chapm., Tayloria acuminata Hornsch., Tayloria froelichiana (Hedw.) Mitt. ex Broth., Tayloria hornschuchii (Grev. & Arn.) Broth., Tayloria lingulata (Dicks.) Lindb., Tayloria serrata (Hedw.) Bruch & Schimp., Tayloria splachnoides (Schleich. ex Schwägr.) Hook., Tecoma stans (L.) Juss. ex Kunth, Tectaria coriandrifolia (Sw.) Underw., Tectaria estremeriana Proctor & A.M.Evans, Tectaria fimbriata (Willd.) Proctor & Lourteig, Tectaria gaudichaudii (Mett.) Maxon, Tectaria heracleifolia (Willd.) Underw., Telesonix heucheriformis (Rydb.) Rydb., Telesonix jamesii (Torr.) Raf., Tellima grandiflora (Pursh) Douglas ex Lindl., Tephroseris lindstroemii (Ostenf.) Á.Löve & D.Löve, Tephroseris yukonensis (A.E.Porsild) Holub, Tephrosia angustissima Shuttlew. ex Chapm., Tephrosia chrysophylla Pursh, Tephrosia florida (F.Dietr.) C.E.Wood, Tephrosia hispidula (Michx.) Pers., Tephrosia mohrii (Rydb.) R.K.Godfrey, Tephrosia rugelii Shuttlew. ex B.L.Rob., Tephrosia spicata (Walter) Torr. & A.Gray, Tephrosia tenella A.Gray, Tephrosia thurberi (Rydb.) C.E.Wood, Tephrosia virginiana (L.) Pers., Terminalia molinetii Maza, Ternstroemia heptasepala Krug & Urb., Ternstroemia luquillensis Krug & Urb., Ternstroemia stahlii Krug & Urb., Ternstroemia subsessilis (Britton) Kobuski, Terraria haydenii T.J.Hildebr. & Al-Shehbaz, Tetracoccus dioicus Parry, Tetracoccus fasciculatus (S.Watson) Croizat, Tetracoccus ilicifolius Coville & Gilman, Tetradymia argyraea Munz & J.C.Roos, Tetradymia axillaris A.Nelson, Tetradymia filifolia Greene, Tetradymia nuttallii Torr. & A.Gray, Tetradymia spinosa Hook. & Arn., Tetradymia stenolepis Greene, Tetradymia tetrameres (S.F.Blake) Strother, Tetragonotheca helianthoides L., Tetragonotheca ludoviciana (Torr. & A.Gray) A.Gray, Tetralophozia filiformis (Steph.) Urmi, Tetralophozia setiformis (Ehrh.) Schljakov, Tetramolopium arenarium (A.Gray) Hillebr., Tetramolopium capillare (Gaudich.) H.St.John, Tetramolopium consanguineum (A.Gray) Hillebr., Tetramolopium filiforme Sherff, Tetramolopium humile (A.Gray) Hillebr., Tetramolopium lepidotum (Less.) Sherff, Tetramolopium remyi (A.Gray) Hillebr., Tetramolopium rockii Sherff, Tetramolopium sylvae Lowrey, Tetraneuris acaulis (Pursh) Greene, Tetraneuris argentea (A.Gray) Greene, Tetraneuris grandiflora (Torr. & A.Gray) K.F.Parker, Tetraneuris herbacea Greene, Tetraneuris torreyana (Nutt.) Greene, Tetraneuris turneri (K.F.Parker) K.F.Parker, Tetraphis geniculata Girg. ex Milde, Tetraphis pellucida Hedw., Tetraplasandra gymnocarpa (Hillebr.) Sherff, Tetraplasandra hawaiensis A.Gray, Tetraplasandra kavaiensis (H.Mann) Sherff, Tetraplasandra oahuensis (A.Gray) Harms, Tetraplasandra waialealae Rock, Tetraplasandra waimeae Wawra, Tetraplodon angustatus (Hedw.) Bruch & Schimp., Tetraplodon mnioides (Hedw.) Bruch & Schimp., Tetraplodon pallidus I.Hagen, Tetraplodon paradoxus (R.Br.) I.Hagen, Tetraplodon urceolatus (Hedw.) Bruch & Schimp., Tetrodontium brownianum (Dicks.) Schwägr., Tetrodontium repandum (Funck) Schwägr., Teucrium canadense L., Teucrium glandulosum Kellogg, Teucrium laciniatum Torr., Thalassia testudinum Banks & Sol. ex K.D.Koenig, Thalia dealbata Fraser, Thalia geniculata L., Thalictrum alpinum L., Thalictrum arkansanum B.Boivin, Thalictrum clavatum DC., Thalictrum cooleyi H.E.Ahles, Thalictrum coriaceum (Britton) Small ex Small & Vail, Thalictrum dasycarpum Fisch., C.A.Mey. & Avé-Lall., Thalictrum debile Buckley, Thalictrum dioicum L., Thalictrum fendleri Engelm. ex A.Gray, Thalictrum heliophilum Wilken & De Mott, Thalictrum hultenii B.Boivin, Thalictrum macrostylum Small & A.Heller, Thalictrum mirabile Small, Thalictrum occidentale A.Gray, Thalictrum pubescens Pursh, Thalictrum revolutum DC., Thalictrum sparsiflorum Turcz. ex Fisch. & C.A.Mey., Thalictrum texanum (A.Gray) Small, Thalictrum thalictroides (L.) A.J.Eames & B.Boivin, Thalictrum venulosum Trel., Thamnobryum alleghaniense (Müll.Hal.) Nieuwl., Thamnobryum neckeroides (Hook.) E.Lawton, Thamnolia subuliformis (Ehrh.) W.L.Culb., Thamnosma montana Torr. & Frém., Thaspium barbinode (Michx.) Nutt., Thaspium pinnatifidum (Buckley) A.Gray, Thaspium trifoliatum (L.) A.Gray, Thelesperma burridgeanum S.F.Blake, Thelesperma caespitosum Dorn, Thelesperma curvicarpum Melchert, Thelesperma filifolium (Hook.) A.Gray, Thelesperma flavodiscum (Shinners) B.L.Turner, Thelesperma megapotamicum (Spreng.) Herter, Thelesperma pubescens Dorn, Thelesperma subnudum A.Gray, Thelesperma subnudum var. alpinum S.L.Welsh, Thelia asprella (Schimp.) Sull., Thelia hirtella (Hedw.) Sull., Thelia lescurii Sull., Thelocactus bicolor (Galeotti ex Pfeiff.) Britton & Rose, Thelocactus setispinus (Engelm.) E.F.Anderson, Thelypodiopsis ambigua (S.Watson) Al-Shehbaz, Thelypodiopsis aurea (Eastw.) Rydb., Thelypodiopsis divaricata (Rollins) S.L.Welsh & Reveal, Thelypodiopsis elegans (M.E.Jones) Rydb., Thelypodiopsis juniperorum (Payson) Rydb., Thelypodiopsis purpusii (Brandegee) Rollins, Thelypodiopsis sagittata var. ovalifolia (Rydb.) S.L.Welsh, Thelypodiopsis shinnersii (M.C.Johnst.) Rollins, Thelypodiopsis vaseyi (S.Watson ex B.L.Rob.) Rollins, Thelypodiopsis vermicularis (S.L.Welsh & Reveal) Rollins, Thelypodium brachycarpum (Torr.) Torr., Thelypodium eucosmum B.L.Rob., Thelypodium flexuosum B.L.Rob., Thelypodium howellii S.Watson, Thelypodium integrifolium (Nutt.) Endl., Thelypodium laciniatum (Hook.) Endl., Thelypodium laxiflorum Al-Shehbaz, Thelypodium milleflorum A.Nelson, Thelypodium paniculatum A.Nelson, Thelypodium repandum Rollins, Thelypodium rollinsii Al-Shehbaz, Thelypodium sagittatum (Nutt.) Endl., Thelypodium stenopetalum S.Watson, Thelypodium tenue Rollins, Thelypodium texanum (Cory) Rollins, Thelypodium wrightii A.Gray, Thelypteris augescens (Link) Munz & I.M.Johnst., Thelypteris boydiae (D.C.Eaton) K.Iwats., Thelypteris cyatheoides (Kaulf.) Fosberg, Thelypteris grandis A.R.Sm., Thelypteris inabonensis Proctor, Thelypteris interrupta (Willd.) K.Iwats., Thelypteris nevadensis (D.C.Eaton) Clute, Thelypteris noveboracensis Linnaeus, 1753, Thelypteris ovata R.P.St.John, Thelypteris palustris Schott, Thelypteris patens (Sw.) Small, Thelypteris puberula (Baker) C.V.Morton, Thelypteris quelpaertensis (Christ) Ching, Thelypteris reptans (J.F.Gmel.) C.V.Morton, Thelypteris reticulata Linnaeus, 1759, Thelypteris sclerophylla (Poepp. ex Spreng.), Thelypteris serrata (Cav.) Alston, Thelypteris simulata (Davenp.) Nieuwl., Thelypteris verecunda Proctor, Thelypteris wailele Flynn, Thelypteris yaucoensis Proctor, Thermopsis divaricarpa A.Nelson, Thermopsis fraxinifolia (Nutt.) M.A.Curtis, Thermopsis macrophylla Hook. & Arn., Thermopsis mollis (Michx.) M.A.Curtis ex A.Gray, Thermopsis montana Nutt., Thermopsis rhombifolia (Pursh) Richardson, Thermopsis robusta Howell, Thermopsis villosa (Walter) Fernald & B.G.Schub., Thlaspi arcticum A.E.Porsild, Thlaspi californicum S.Watson, Thlaspi idahoense Payson, Thlaspi idahoense var. aileeniae (Rollins) Rollins, Thlaspi parviflorum A.Nelson, Thrinax morrisii H.Wendl., Thrinax radiata Lodd. ex Schult. & Schult.f., Thuidium alleniorum Austin, Thuidium delicatulum (Hedw.) Schimp., Thuidium recognitum (Hedw.) Lindb., Thuja occidentalis L., Thuja plicata Donn ex D.Don, Thurovia triflora Rose, Thymophylla acerosa (DC.) Strother, Thymophylla concinna (A.Gray) Strother, Thymophylla pentachaeta (DC.) Small, Thymophylla tephroleuca (S.F.Blake) Strother, Thysanocarpus conchuliferus Greene, Thysanocarpus curvipes Hook., Thysanocarpus rigidus (Munz) P.J.Alexander & Windham, Tiarella cordifolia L., Tiarella trifoliata L., Tidestromia carnosa (Steyerm.) I.M.Johnst., Tidestromia lanuginosa (Nutt.) Standl., Tidestromia oblongifolia (S.Watson) Standl., Tilia americana L., Tillandsia baileyi Rose ex Small, Tillandsia balbisiana Schult. & Schult.f., Tillandsia bartramii Elliott, Tillandsia fasciculata Sw., Tillandsia flexuosa Sw., Tillandsia paucifolia Baker, Tillandsia pruinosa Sw., Tillandsia recurvata (L.) L., Tillandsia setacea Sw., Tillandsia tenuifolia L., Tillandsia usneoides (L.) L., Tillandsia utriculata L., Tillandsia variabilis Schltdl., Timmia austriaca Hedw., Timmia megapolitana Hedw., Timmia norvegica J.E.Zetterst., Timmia sibirica Lindb. & Arnell, Timmiella crassinervis (Hampe) L.F.Koch, Tipularia discolor (Pursh) Nutt., Tiquilia canescens (DC.) A.T.Richardson, Tiquilia gossypina (Wooton & Standl.) A.T.Richardson, Tiquilia latior (I.M.Johnst.) A.T.Richardson, Tiquilia nuttallii (Benth. ex Hook.) A.T.Richardson, Tiquilia palmeri (A.Gray) A.T.Richardson, Tofieldia coccinea Richardson, Tofieldia glabra Nutt., Tofieldia pusilla (Michx.) Pers., Tolumnia bahamensis (Nash) Braem, Tomentypnum falcifolium (Renauld ex Nichols) Tuom., Tomentypnum nitens (Hedw.) Loeske, Tonella tenella (Benth.) Jeps., Tonestus aberrans (A.Nelson) G.L.Nesom & D.R.Morgan, Tonestus alpinus (L.C.Anderson & Goodrich) G.L.Nesom & D.R.Morgan, Tonestus eximius (H.M.Hall) A.Nelson & J.F.Macbr., Tonestus graniticus (Tiehm & L.M.Shultz) G.L.Nesom & D.R.Morgan, Tonestus kingii (D.C.Eaton) G.L.Nesom, Tonestus kingii var. barnebyana (Welsh & Goodrich) G.L.Nesom, Tonestus lyallii (A.Gray) A.Nelson, Tonestus microcephalus (Cronquist) G.L.Nesom & D.R.Morgan, Tonestus peirsonii (D.D.Keck) G.L.Nesom & D.R.Morgan, Tonestus pygmaeus (Torr. & A.Gray) A.Nelson, Torreya taxifolia Arn., Torreyochloa californica (Beetle) Church, Torreyochloa erecta (Hitchc.) Church, Torreyochloa pallida (Torr.) Church, Tortella alpicola Dixon, Tortella flavovirens (Bruch) Broth., Tortella fragilis (Drumm.) Limpr., Tortella humilis (Hedw.) Jenn., Tortella inclinata (R.Hedw.) Limpr., Tortella rigens Alberts., Tortella tortuosa (Schrad. ex Hedw.) Limpr., Tortula acaulon (With.) R.H.Zander, Tortula amplexa (Lesq.) Steere, Tortula atrovirens (Sm.) Lindb., Tortula bolanderi (Lesq.) M.Howe, Tortula brevipes (Lesq.) Broth., Tortula californica E.B.Bartram, Tortula cernua (Huebener) Lindb., Tortula hoppeana (Schultz) Ochyra, Tortula inermis (Brid.) Mont., Tortula laureri (Schultz) Lindb., Tortula leucostoma (R.Br.) Hook. & Grev., Tortula modica R.H.Zander, Tortula mucronifolia Schwägr., Tortula muralis Hedw., Tortula nevadensis (Cardot & Thér.) R.H.Zander, Tortula obtusifolia (Schwägr.) Mathieu, Tortula plinthobia (Sull. & Lesq.) Broth., Tortula porteri (James) Broth., Tortula protobryoides R.H.Zander, Tortula subulata Hedw., Tortula systylia (Schimp.) Lindb., Tortula truncata (Hedw.) Mitt., Touchardia latifolia Gaudich., Tournefortia L., Townsendia alpigena Piper, Townsendia aprica S.L.Welsh & Reveal, Townsendia condensata Parry, Townsendia exscapa (Richards.) Porter, Townsendia fendleri A.Gray, Townsendia florifera (Hook.) A.Gray, Townsendia formosa Greene, Townsendia glabella A.Gray, Townsendia grandiflora Nutt., Townsendia gypsophila Lowrey & P.J.Knight, Townsendia hookeri Beaman, Townsendia incana Nutt., Townsendia jonesii (Beaman) Reveal, Townsendia jonesii var. lutea S.L.Welsh, Townsendia jonesii var. tumulosa Reveal, Townsendia leptotes (A.Gray) Osterh., Townsendia mensana M.E.Jones, Townsendia microcephala Dorn, Townsendia montana var. caelilinensis S.L.Welsh, Townsendia montana var. minima (Eastw.) Beaman, Townsendia nuttallii Dorn, Townsendia parryi Eaton, Townsendia rothrockii A.Gray ex Rothr., Townsendia scapigera Eaton, Townsendia smithii L.M.Schultz & A.H.Holmgren, Townsendia spathulata Nutt., Townsendia strigosa Nutt., Townsendia texensis Larsen, Toxicodendron diversilobum (Torr. & A.Gray) Greene, Toxicodendron pubescens Mill., Toxicodendron radicans (L.) Kuntze, Toxicodendron rydbergii (Small ex Rydb.) Greene, Toxicodendron vernix (L.) Kuntze, Trachelospermum difforme (Walter) A.Gray, Trachyxiphium hypnaceum (Müll.Hal.) W.R.Buck, Tracyina rostrata S.F.Blake, Tradescantia bracteata Small ex Britton, Tradescantia brevifolia (Torr.) Rose, Tradescantia buckleyi (I.M.Johnst.) D.R.Hunt, Tradescantia ernestiana E.S.Anderson & Woodson, Tradescantia gigantea Rose, Tradescantia hirsuticaulis Small, Tradescantia hirsutiflora Bush, Tradescantia leiandra Torr., Tradescantia longipes E.S.Anderson & Woodson, Tradescantia occidentalis (Britton) Smyth, Tradescantia ohiensis Raf., Tradescantia ozarkana E.S.Anderson & Woodson, Tradescantia paludosa E.S.Anderson & Woodson, Tradescantia pedicellata Celarier, Tradescantia reverchonii Bush, Tradescantia roseolens Small, Tradescantia subaspera Ker Gawl., Tradescantia virginiana L., Tradescantia wrightii Rose & Bush, Tragia amblyodonta (Müll.Arg.) Pax & K.Hoffm., Tragia cordata Michx., Tragia laciniata (Torr.) Müll.Arg., Tragia nigricans Bush, Tragia ramosa Torr., Tragia saxicola Small, Tragia smallii Shinners, Tragia urens L., Tragia urticifolia Michx., Trautvetteria caroliniensis (Walter) Vail, Trautvetteria caroliniensis var. occidentalis (A.Gray) C.L.Hitchc., Trema lamarckiana (Roem. & Schult.) Blume, Trema micrantha (L.) Blume, Trematodon ambiguus (Hedw.) Hornsch., Trematodon boasii W.B.Schofield, Trematodon brevicollis Hornsch., Trematodon laetevirens Hakelier & J.-P.Frahm, Trematodon longicollis Michx., Trematodon montanus Belland & Brassard, Trematolobelia grandifolia (Rock) O.Deg., Trematolobelia kauaiensis (Rock) Skottsb., Trematolobelia macrostachys (Hook. & Arn.) Zahlbr. ex Rock, Trematolobelia singularis H.St.John, Trepocarpus aethusae Nutt. ex DC., Triadenum fraseri (Spach) Gleason, Triadenum tubulosum (Walter) Gleason, Triadenum virginicum (L.) Raf., Triadenum walteri (J.F.Gmel.) Gleason, Triantha glutinosa (Michx.) Baker, Triantha occidentalis (S.Watson) R.R.Gates, Triantha occidentalis subsp. brevistyla (C.L.Hitchc.) Packer, Triantha racemosa (Walter) Small, Tricardia watsonii Torr. ex S.Watson, Trichilia triacantha Urb., Trichocolea tomentella (Ehrh.) Dumort., Trichocoronis rivularis A.Gray, Trichocoronis wrightii (Torr. & A.Gray) A.Gray, Trichodon cylindricus (Hedw.) Schimp., Trichomanes boschianum J.W.Sturm ex Bosch, Trichomanes draytonianum Brack., Trichomanes holopterum Kunze, Trichomanes intricatum Farrar, Trichomanes krausii Hook. & Grev., Trichomanes lineolatum (Bosch) Hook., Trichomanes minutum Blume, Trichomanes petersii A.Gray, Trichomanes punctatum Poir., Trichoneura elegans Swallen, Trichophorum alpinum (L.) Pers., Trichophorum caespitosum (L.) Hartman, Trichophorum clementis (M.E.Jones) S.G.Sm., Trichophorum clintonii (A.Gray) S.G.Sm., Trichophorum planifolium (Spreng.) Palla, Trichophorum pumilum (Vahl) Schinz & Thell., Trichostema arizonicum A.Gray, Trichostema austromontanum H.F.Lewis, Trichostema brachiatum L., Trichostema dichotomum L., Trichostema micranthum A.Gray, Trichostema oblongum Benth., Trichostema ovatum Curran, Trichostema parishii Vasey, Trichostema setaceum Houtt., Trichostema suffrutescens Kearney, Trichostigma octandrum (L.) H.Walter, Trichostomum arcticum Kaal., Trichostomum crispulum Bruch, Trichostomum recurvifolium (Taylor) R.H.Zander, Trichostomum spirale Grout, Trichostomum tenuirostre (Hook. & Taylor) Lindb., Tridens albescens (Vasey) Wooton & Standl., Tridens ambiguus (Elliott) Schult., Tridens buckleyanus (L.H.Dewey) Nash, Tridens carolinianus (Steud.) Henrard, Tridens muticus (Torr.) Nash, Tridens strictus (Nutt.) Nash, Tridens ×oklahomensis (Feath.) Feath., Trientalis borealis Raf., Trientalis Ruppius ex L., Trientalis latifolia Hook., Trifolium amabile Kunth, Trifolium amoenum Greene, Trifolium andersonii subsp. beatleyae J.M.Gillett, Trifolium andinum Nutt., Trifolium andinum var. podocephalum Barneby, Trifolium attenuatum Greene, Trifolium barnebyi (Isely) Dorn & Lichvar, Trifolium beckwithii W.H.Brewer ex S.Watson, Trifolium bolanderi A.Gray, Trifolium brandegeei S.Watson, Trifolium buckwestiorum Isely, Trifolium calcaricum J.L.Collins & Wieboldt, Trifolium carolinianum Michx., Trifolium cyathiferum Lindl., Trifolium dasyphyllum Torr. & A.Gray, Trifolium dedeckerae J.M.Gillett, Trifolium depauperatum Desv., Trifolium dichotomum Hook. & Arn., Trifolium douglasii House, Trifolium eriocephalum Nutt., Trifolium friscanum (S.L.Welsh) S.L.Welsh, Trifolium gymnocarpon Nutt., Trifolium haydenii Porter, Trifolium jokerstii Vincent & Rand.Morgan, Trifolium kingii S.Watson, Trifolium leibergii A.Nelson & J.F.Macbr., Trifolium lemmonii S.Watson, Trifolium microcephalum Pursh, Trifolium mucronatum Willd. ex Spreng., Trifolium nanum Torr., Trifolium neurophyllum Greene, Trifolium owyheense Gilkey, Trifolium parryi A.Gray, Trifolium pinetorum Greene, Trifolium plumosum Douglas ex Hook., Trifolium polyodon Greene, Trifolium reflexum L., Trifolium rollinsii J.M.Gillett, Trifolium sonorense T.K.Ahlq. & Vincent, Trifolium stoloniferum Muhl., Trifolium thompsonii C.V.Morton, Trifolium trichocalyx A.Heller, Trifolium variegatum Nutt., Trifolium virginicum Small, Trifolium wormskioldii Lehm., Triglochin concinna Burtt Davy, Triglochin gaspensis Lieth & D.Löve, Triglochin maritima L., Triglochin palustris L., Triglochin striata Ruiz & Pav., Trillidium undulatum (Willd.) Floden & E.E.Schill., Trillium cernuum L., Trillium crassifolium Piper, Trillium cuneatum Raf., Trillium decipiens J.D.Freeman, Trillium decumbens Harb., Trillium delicatum Floden & E.E.Schill., Trillium discolor Hook., Trillium erectum L., Trillium flexipes Raf., Trillium foetidissimum J.D.Freeman, Trillium georgianum S.B.Farmer, Trillium gracile J.D.Freeman, Trillium grandiflorum (Michx.) Salisb., Trillium hibbersonii (T.M.C.Taylor & Szczaw.) D.O'Neill & S.B.Farmer, Trillium kurabayashii J.D.Freeman, Trillium lancifolium Raf., Trillium ludovicianum Harb., Trillium luteum (Muhl.) Harb., Trillium maculatum Raf., Trillium nivale Riddell, Trillium oostingii Gaddy, Trillium ovatum Pursh, Trillium persistens W.H.Duncan, Trillium pusillum Michx., Trillium recurvatum L.C.Beck, Trillium reliquum J.D.Freeman, Trillium rugelii Rendle, Trillium scouleri Rydb., Trillium sessile L., Trillium simile Gleason, Trillium stamineum Harb., Trillium sulcatum T.S.Patrick, Trillium tennesseense E.E.Schill. & Floden, Trillium texanum Buckley, Trillium underwoodii Small, Trillium vaseyi Harb., Trillium viride L.C.Beck, Trillium viridescens Nutt., Triodanis holzingeri McVaugh, Triodanis lamprosperma McVaugh, Triodanis leptocarpa (Nutt.) Nieuwl., Triodanis perfoliata (L.) Nieuwl., Triosteum angustifolium L., Triosteum aurantiacum E.P.Bicknell, Triosteum perfoliatum L., Triphora amazonica Schltr., Triphora craigheadii Luer, Triphora trianthophora (Sw.) Rydb., Triphora yucatanensis Ames, Triphysaria floribunda (Benth.) T.I.Chuang & Heckard, Triphysaria micrantha (Greene ex A.Heller) T.I.Chuang & Heckard, Triphysaria versicolor Fisch. & C.A.Mey., Triplasis americana P.Beauv., Triplasis purpurea (Walter) Chapm., Tripleurospermum maritimum (L.) W.D.J.Koch, Tripsacum dactyloides (L.) L., Tripsacum floridanum Porter ex Vasey, Tripsacum lanceolatum E.Fourn., Tripterocalyx crux-maltae (Kellogg) Standl., Tripterocalyx micranthus (Torr.) Hook., Tripterocalyx wootonii Standl., Tripterocladium leucocladulum (Müll.Hal.) A.Jaeger, Triquetrella californica (Lesq.) Grout, Trisetum canescens Buckley, Trisetum glomeratum (Kunth) Trin. ex Steud., Trisetum inaequale Whitney, Trisetum interruptum E.Fourn. ex Hemsl., Trisetum melicoides Vasey ex Lunell, Trisetum sibiricum Rupr., Trisetum spicatum (L.) K.Richt., Trisetum wolfii Vasey, Triteleia clementina Hoover, Triteleia dudleyi Hoover, Triteleia grandiflora Lindl., Triteleia hendersonii Greene, Triteleia laxa Benth., Triteleia lemmoniae (S.Watson) Greene, Triteleia peduncularis Lindl., Triteleia piutensis Kentner & K.E.Steiner, Triteleiopsis palmeri (S.Watson) Hoover, Tritomaria capitata (Hook.) Stotler & Crand.-Stotl., Tritomaria exsecta (Schmidel) Schiffn. ex Loeske, Tritomaria exsectiformis (Breidl.) Schiffn. ex Loeske, Tritomaria laxa (Lindb.) Stotler & Crand.-Stotl., Tritomaria quinquedentata (Huds.) H.Buch, Tritomaria scitula (Taylor) Jørg., Trixis californica Kellogg, Trollius laxus Salisb., Trollius riederianus Schipcz., Tropidia polystachya (Sw.) Ames, Tropidocarpum californicum (Al-Shehbaz) Al-Shehbaz, Tropidocarpum capparideum Greene, Tsuga canadensis (L.) Carrière, Tsuga caroliniana Engelm., Tsuga heterophylla (Raf.) Sarg., Tuctoria greenei (Vasey) Reeder, Tuctoria mucronata (Crampton) Reeder, Tuerckheimia svihlae (E.B.Bartram) R.H.Zander, Tumamoca macdougalii Rose, Typha angustifolia L., Typha domingensis Pers., Typha latifolia L., Typha ×glauca Godr., Ulmus alata Michx., Ulmus americana L., Ulmus crassifolia Nutt., Ulmus rubra Muhl., Ulmus serotina Sarg., Ulmus thomasii Sarg., Ulota coarctata (P.Beauv.) Hammar, Ulota crispa (Hedw.) Brid., Ulota curvifolia (Wahlenb.) Lilj., Ulota drummondii (Hook. & Grev.) Brid., Ulota hutchinsiae (Sm.) Hammar, Ulota megalospora Venturi, Ulota phyllantha Brid., Uniola paniculata L., Urera glabra (Hook. & Arn.) Wedd., Urera kaalae Wawra, Urtica chamaedryoides Pursh, Urtica dioica L., Urtica dioica subsp. holosericea (Nutt.) Thorne, Utricularia amethystina Salzm. ex A.St.-Hil. & Girard, Utricularia cornuta Michx., Utricularia floridana Nash, Utricularia foliosa L., Utricularia geminiscapa Benj., Utricularia gibba L., Utricularia inflata Walter, Utricularia intermedia Hayne, Utricularia juncea Vahl, Utricularia macrorhiza Leconte, Utricularia minor L., Utricularia ×ochroleuca R.W.Hartm., Utricularia olivacea C.Wright ex Griseb., Utricularia purpurea Walter, Utricularia radiata Small, Utricularia resupinata B.D.Greene ex Hitchc., Utricularia striata Leconte, Utricularia subulata L., Uvularia floridana Chapm., Uvularia grandiflora Sm., Uvularia perfoliata L., Uvularia puberula Michx., Uvularia sessilifolia L., Vaccinium angustifolium Aiton, Vaccinium arboreum Marshall, Vaccinium boreale I.V.Hall & Aalders, Vaccinium caespitosum Michx., Vaccinium calycinum Sm., Vaccinium corymbosum L., Vaccinium crassifolium Andrews, Vaccinium dentatum Sm., Vaccinium elliottii Chapm., Vaccinium erythrocarpum Michx., Vaccinium formosum Andrews, Vaccinium hirsutum Buckley, Vaccinium macrocarpum Aiton, Vaccinium membranaceum Douglas ex Hook., Vaccinium myrtilloides Michx., Vaccinium myrtillus L., Vaccinium myrtillus var. oreophilum (Rydb.) Dorn, Vaccinium ovalifolium Sm., Vaccinium oxycoccos L., Vaccinium pallidum Aiton, Vaccinium reticulatum Sm., Vaccinium scoparium Leiberg, Vaccinium stamineum L., Vaccinium tenellum Aiton, Vaccinium uliginosum L., Vaccinium virgatum Aiton, Vaccinium vitis-idaea L., Vachellia tortuosa (L.) Seigler & Ebinger, Vahlodea atropurpurea (Wahlenb.) Fr., Valeriana acutiloba Rydb., Valeriana arizonica A.Gray, Valeriana columbiana Piper, Valeriana dioica L., Valeriana edulis Torr. & A.Gray, Valeriana occidentalis A.Heller, Valeriana pauciflora Michx., Valeriana texana Steyerm., Valeriana uliginosa (Torr. & A.Gray) Rydb., Valerianella amarella (Lindh. ex Engelm.) Krok, Valerianella chenopodiifolia (Pursh) DC., Valerianella florifera Shinners, Valerianella longiflora (Torr. & A.Gray) Walp., Valerianella nuttallii (Torr. & A.Gray) Walp., Valerianella ozarkana Dyal, Valerianella palmeri Dyal, Valerianella radiata (Willd.) Dufr., Valerianella stenocarpa (Engelm.) Krok, Valerianella texana Dyal, Valerianella umbilicata (Sull.) Wood, Valerianella woodsiana (Torr. & A.Gray) Walp., Vallesia antillana Woodson, Vallisneria americana Michx., Vanclevea stylosa (Eastw.) Greene, Vancouveria chrysantha Greene, Vanilla barbellata Rchb.f., Vanilla dilloniana Correll, Vanilla mexicana Mill., Vanilla phaeantha Rchb.f., Vaseyochloa multinervosa (Vasey) Hitchc., Veratrum californicum Durand, Veratrum californicum var. californicum, Veratrum fimbriatum A.Gray, Veratrum insolitum Jeps., Veratrum viride Aiton, Verbena abramsii Moldenke, Verbena bracteata Cav. ex Lag. & Rodr., Verbena californica Moldenke, Verbena cloverae Moldenke, Verbena hastata L., Verbena macdougalii A.Heller, Verbena pinetorum Moldenke, Verbena plicata Greene, Verbena runyonii Moldenke, Verbena scabra Vahl, Verbena simplex Lehm., Verbena stricta Vent., Verbena urticifolia L., Verbena ×engelmannii Moldenke, Verbena ×illicita Moldenke, Verbena ×moechina Moldenke, Verbena ×rydbergii Moldenke, Verbesina alternifolia (L.) Britton ex Kearney, Verbesina aristata (Elliott) A.Heller, Verbesina chapmanii J.R.Coleman, Verbesina dissita A.Gray, Verbesina encelioides (Cav.) Benth. & Hook.fil. ex A.Gray, Verbesina helianthoides Michx., Verbesina heterophylla (Chapm.) A.Gray, Verbesina longifolia (A.Gray) A.Gray, Verbesina nana (A.Gray) B.L.Rob. & Greenm., Verbesina occidentalis (L.) Walter, Verbesina oreophila Wooton & Standl., Verbesina rothrockii B.L.Rob. & Greenm., Verbesina virginica L., Verbesina walteri Shinners, Vernonia angustifolia Michx., Vernonia baldwinii Torr., Vernonia fasciculata Michx., Vernonia gigantea (Walter) Trelease ex Branner & Coville, Vernonia glauca (L.) Willd., Vernonia lettermannii Engelm. ex A.Gray, Vernonia marginata (Torr.) Raf., Vernonia missurica Raf., Vernonia noveboracensis (L.) Willd., Vernonia proctorii Urbatsch, Vernonia pulchella Small, Veronica alpina L., Veronica americana (Raf.) Schwein. ex Benth., Veronica anagallis-aquatica L., Veronica copelandii Eastw., Veronica grandiflora Gaertn., Veronica peregrina L., Veronica scutellata L., Veronica serpyllifolia L., Veronica wormskjoldii Roem. & Schult., Veronicastrum virginicum (L.) Farw., Vesicarpa potentilloides (A.Gray) Rydb., Viburnum acerifolium L., Viburnum bracteatum Rehder, Viburnum dentatum L., Viburnum edule (Michx.) Raf., Viburnum ellipticum Hook., Viburnum lantanoides Michx., Viburnum lentago L., Viburnum molle Michx., Viburnum nudum L., Viburnum obovatum Walter, Viburnum opulus L., Viburnum prunifolium L., Viburnum rafinesquianum Schult., Viburnum recognitum Fernald, Viburnum rufidulum Raf., Vicia americana Muhl. ex Willd., Vicia caroliniana Walter, Vicia floridana S.Watson, Vicia leucophaea Greene, Vicia menziesii Spreng., Vicia minutiflora D.Dietr., Vicia ocalensis R.K.Godfrey & Kral, Vigna luteola (Jacq.) Benth., Vigna owahuensis Vogel, Viguiera cordifolia A.Gray, Viguiera laciniata A.Gray, Viguiera phenax S.F.Blake, Viguiera reticulata S.Watson, Viguiera triloba (A.Gray) Olsen, Villadia squamulosa (S.Watson) Rose, Viola adunca Sm., Viola affinis Leconte, Viola appalachiensis L.K.Henry, Viola aurea Kellogg, Viola beckwithii Torr. & A.Gray, Viola bicolor Pursh, Viola biflora L., Viola blanda Willd., Viola brittoniana Pollard, Viola canadensis L., Viola chamissoniana Ging., Viola charlestonensis M.S.Baker & J.C.Clausen, Viola clauseniana Baker, Viola cucullata Aiton, Viola egglestonii Brainerd, Viola epipsila Ledeb., Viola esculenta Elliott, Viola flettii Piper, Viola franksmithii N.H.Holmgren, Viola guadalupensis A.M.Powell & Wauer, Viola helenae C.N.Forbes & Lydgate, Viola hirsutula Brainerd, Viola howellii A.Gray, Viola kauaensis A.Gray, Viola labradorica Schrank, Viola lanaiensis W.Becker, Viola lanceolata L., Viola langsdorffii Fisch. ex DC., Viola lithion N.H.Holmgren & P.K.Holmgren, Viola macloskeyi F.E.Lloyd, Viola maviensis H.Mann, Viola missouriensis Greene, Viola nephrophylla Greene, Viola novae-angliae House, Viola nuttallii Pursh, Viola oahuensis C.N.Forbes, Viola orbiculata Geyer ex A.Gray, Viola palustris L., Viola pedata L., Viola pedatifida G.Don, Viola praemorsa Douglas, Viola pubescens Aiton, Viola purpurea Kellogg, Viola purpurea subsp. aurea (Kellogg) J.C.Clausen, Viola renifolia A.Gray, Viola renifolia var. brainerdii (Greene) Fernald, Viola rostrata Pursh, Viola rotundifolia Michx., Viola sagittata Aiton, Viola selkirkii Pursh ex Goldie, Viola sempervirens Greene, Viola septentrionalis Greene, Viola sheltonii Torr., Viola striata Aiton, Viola tomentosa M.S.Baker & J.C.Clausen, Viola tripartita Elliott, Viola umbraticola Kunth, Viola utahensis M.S.Baker & J.C.Clausen, Viola vallicola A.Nelson, Viola viarum Pollard, Viola villosa Walter, Viola wailenalenae (Rock) Skottsb., Viola walteri House, Viola ×brauniae Grover ex Cooperr., Viola primulifolia L., Vitis acerifolia Raf., Vitis aestivalis Michx., Vitis arizonica Engelm., Vitis cinerea (Engelm.) Millardet, Vitis labrusca L., Vitis mustangensis Buckley, Vitis palmata Vahl, Vitis riparia Michx., Vitis rotundifolia Michx., Vitis rupestris Scheele, Vitis vulpina L., Vittaria appalachiana Farrar & Mickel, Vittaria lineata (L.) J.E.Sm., Voitia hyperborea Grev. & Arn., Voitia nivalis Hornsch., Voyria parasitica (Schltdl. & Cham.) Ruyters & Maas, Vulpia elliotea (Raf.) Fernald, Vulpia octoflora (Walter) Rydb., Wahlenbergia marginata (Thunb.) A.DC., Waldsteinia fragarioides (Michx.) Tratt., Waldsteinia idahoensis Piper, Waldsteinia lobata (Baldwin) Torr. & A.Gray, Warea amplexifolia (Nutt.) Nutt., Warea carteri Small, Warea cuneifolia (Muhl. ex Nutt.) Nutt., Warea sessilifolia Nash, Warnstorfia fluitans (Hedw.) Loeske, Warnstorfia pseudostraminea (Müll.Hal.) Tuom. & T.J.Kop., Washingtonia filifera (Rafarin) H.Wendl. ex de Bary, Websteria confervoides (Poir.) S.S.Hooper, Weissia brachycarpa (Nees & Hornsch.) Jur., Weissia controversa Hedw., Weissia inoperculata (H.A.Crum) H.A.Crum, Steere & L.E.Anderson, Weissia ludoviciana (Sull.) W.D.Reese & B.A.E.Lemmon, Weissia muhlenbergiana (Sw.) W.D.Reese & B.A.E.Lemmon, Weissia phascopsis R.H.Zander, Weissia sharpii L.E.Anderson & B.A.E.Lemmon, Whipplea modesta Torr., Whitneya dealbata A.Gray, Wijkia carlottae (W.B.Schofield) H.A.Crum, Wikstroemia bicornuta Hillebr., Wikstroemia forbesii Skottsb., Wikstroemia furcata (Hillebr.) Rock, Wikstroemia monticola Skottsb., Wikstroemia phillyreifolia A.Gray, Wikstroemia pulcherrima Skottsb., Wikstroemia sandwicensis Meisn., Wikstroemia skottsbergiana Sparre, Wikstroemia uva-ursi A.Gray, Wikstroemia villosa Hillebr., Wilkesia gymnoxiphium A.Gray, Wilkesia hobdyi H.St.John, Willkommia texana Hitchc., Wissadula parvifolia Fryxell, Wissadula periplocifolia (L.) J.Presl ex Thwaites, Wisteria frutescens (L.) Poir., Wolffia borealis (Engelm.) Landolt, Wolffia brasiliensis Wedd., Wolffia columbiana H.Karst., Wolffiella gladiata (Hegelm.) Hegelm., Wolffiella lingulata (Hegelm.) Hegelm., Woodsia alpina (Bolton) Gray, Woodsia appalachiana T.M.C.Taylor, Woodsia cochisensis Windham, Woodsia glabella R.Br. ex Richardson, Woodsia ilvensis (L.) R.Br., Woodsia neomexicana Windham, Woodsia obtusa (Spreng.) Torr., Woodsia oregana D.C.Eaton, Woodsia phillipsii Windham, Woodsia plummerae Lemmon, Woodsia scopulina D.C.Eaton, Woodsia ×abbeae Butters, Woodsia ×kansana R.L.Brooks, Woodwardia areolata Linnaeus, 1753, Woodwardia fimbriata J.E.Sm., Woodwardia virginica (L.) Sm., Wyethia amplexicaulis (Nutt.) Nutt., Wyethia angustifolia (DC.) Nutt., Wyethia bolanderi (A.Gray) W.A.Weber, Wyethia helianthoides Nutt., Wyethia invenusta (Greene) W.A.Weber, Wyethia ovata A.Gray, 1868, Wyethia reticulata Greene, Wyethia scabra Hook., ×Elyhordeum montanense (Scribn.) Bowden, Xanthisma grindelioides var. depressum (Maguire) D.R.Morgan & R.L.Hartm., Xanthisma texanum DC., Xanthisma viscidum (Wooton & Standl.) D.R.Morgan & R.L.Hartm., Xanthium strumarium L., Xanthoparmelia idahoensis Hale, Xanthorhiza simplicissima Marshall, Xerophyllum asphodeloides (L.) Nutt., Xerophyllum tenax (Pursh) Nutt., Ximenia americana L., Xylococcus bicolor Nutt., Xylorhiza cognata (H.M.Hall) T.J.Watson, Xylorhiza confertifolia (Cronquist) T.J.Watson, Xylorhiza cronquistii S.L.Welsh & N.D.Atwood, Xylorhiza glabriuscula Nutt., Xylorhiza orcuttii (Vasey & Rose) Greene, Xylorhiza venusta (M.E.Jones) A.Heller, Xylorhiza wrightii (A.Gray) Greene, Xylosma buxifolium A.Gray, Xylosma crenatum (H.St.John) H.St.John, Xylosma hawaiensis Seem., Xylosma schwaneckeanum (Krug & Urb.) Urb., Xylothamia triantha (S.F.Blake) G.L.Nesom, Xyris ambigua Beyr. ex Kunth, Xyris baldwiniana Schult., Xyris brevifolia Michx., Xyris caroliniana Walter, Xyris chapmanii E.L.Bridges & Orzell, Xyris correlliorum E.L.Bridges & Orzell, Xyris difformis Chapm., Xyris drummondii Malme, Xyris elliottii Chapm., Xyris fimbriata Elliott, Xyris flabelliformis Chapm., Xyris isoetifolia Kral, Xyris jupicai Rich., Xyris laxifolia Mart., Xyris longisepala Kral, Xyris louisianica E.L.Bridges & Orzell, Xyris montana Ries, Xyris panacea L.C.Anderson & Kral, Xyris platylepis Chapm., Xyris scabrifolia R.M.Harper, Xyris serotina Chapm., Xyris smalliana Nash, Xyris stricta Chapm., Xyris tennesseensis Kral, Xyris torta Sm., Yabea microcarpa (Hook. & Arn.) Koso-Pol., Yeatesia platystegia (Torr.) Hilsenb., Yeatesia viridiflora (Nees) Small, Yermo xanthocephalus Dorn, Yucca aloifolia L., Yucca angustissima Engelm. ex Trel., Yucca angustissima var. avia Reveal, Yucca arkansana Trel., Yucca brevifolia Engelm., Yucca campestris McKelvey, Yucca faxoniana (Trel.) Sarg., Yucca glauca Nutt., Yucca gloriosa L., Yucca jaegeriana (McKelvey) L.W.Lenz, Yucca louisianensis Trel., Yucca necopina Shinners, Yucca pallida McKelvey, Yucca reverchonii Trel., Yucca schidigera Roezl ex Ortgies, Yucca ×schottii Engelm., Yucca tenuistyla Trel., Yucca thompsoniana Trel., Yucca treculeana Carrière, Yucca whipplei Torr., Zamia pumila L., Zannichellia palustris L., Zanthoxylum americanum Mill., Zanthoxylum clava-herculis L., Zanthoxylum coriaceum (Desv. ex Ham.) Walp., Zanthoxylum dipetalum H.Mann, Zanthoxylum flavum Vahl, Zanthoxylum hawaiiense Hillebr., Zanthoxylum kauaense A.Gray, Zanthoxylum oahuense Hillebr., Zanthoxylum parvum Shinners, Zanthoxylum thomasianum (Krug & Urb.) P.Wilson, Zeltnera exaltata (Griseb.) G.Mans., Zeltnera namophila (Reveal, C.R.Broome & Beatley) G.Mans., Zenobia pulverulenta (W.Bartram) Pollard, Zephyranthes atamasca (L.) Herbert, Zephyranthes Herb., Zephyranthes refugiensis F.B.Jones, Zephyranthes simpsonii Chapm., Zigadenus brevibracteatus (M.E.Jones) H.M.Hall, Zigadenus densus (Desr.) Fernald, Zigadenus elegans Pursh, Zigadenus exaltatus Eastw., Zigadenus fontanus Eastw., Zigadenus glaberrimus Michx., Zigadenus leimanthoides (A.Gray) A.Gray, Zigadenus mogollonensis W.J.Hess & Sivinski, Zigadenus nuttallii (A.Gray) S.Watson, Zigadenus paniculatus (Nutt.) S.Watson, Zigadenus vaginatus (Rydb.) J.F.Macbr., Zizania aquatica L., Zizania palustris L., Zizania texana Hitchc., Zizaniopsis miliacea (Michx.) Döll & Asch., Zizia aptera (A.Gray) Fernald, Zizia aurea (L.) W.D.J.Koch, Zizia trifoliata (Michx.) Fernald, Ziziphus celata Judd & D.W.Hall, Ziziphus obtusifolia (Hook. ex Torr. & A.Gray) A.Gray, Ziziphus parryi Torr., Zornia bracteata J.F.Gmel., Zostera marina L., Zuckia brandegeei (A.Gray) S.L.Welsh & Stutz, Zygodon conoideus (Dicks.) Hook. & Taylor, Zygodon gracilis Wilson, Zygodon reinwardtii (Hornsch.) A.Braun, Zygodon viridissimus (Dicks.) Brid.)",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Machine Observation)",
 "Country is one of (United States of America, Canada, Mexico, Bahamas, Belize, Costa Rica, Cuba, Dominican Republic, Greenland, Guatemala, Honduras, Haiti, Jamaica, Nicaragua, Panama, Puerto Rico, El Salvador, Trinidad and Tobago)",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 "Year is greater than or equal to 1990",
 "CoordinateUncertaintyInMeters is less than 999",
 "ScientificName is not null",
 "DecimalLongitude is not null",
 "DecimalLatitude is not null"
 ]
}

 The dataset includes 911080 records from 257 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0168577-210914110416597/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.