# List of Canadian plants by family A

Main page: List of Canadian plants by family
Families: A | B | C | D | E | F | G | H | I J K | L | M | N | O | P Q | R | S | T | U V W | X Y Z

## Acanthaceae

* Justicia americana — common water-willow

## Aceraceae

* Acer circinatum — vine maple
* Acer glabrum — Douglas maple
* Acer macrophyllum — bigleaf maple
* Acer negundo — box-elder
* Acer nigrum — black maple
* Acer pensylvanicum — striped maple
* Acer rubrum — red maple
* Acer saccharinum — silver maple
* Acer saccharum — sugar maple
* Acer spicatum — mountain maple
* Acer × freemanii — Freeman's maple

## Acoraceae

* Acorus americanus — sweetflag

## Adelanthaceae

* Odontoschisma denudatum
* Odontoschisma elongatum
* Odontoschisma gibbsiae
* Odontoschisma macounii
* Odontoschisma sphagni

## Adoxaceae

* Adoxa moschatellina — muskroot
* Viburnum acerifolium — mapleleaf viburnum
* Viburnum edule — squashberry
* Viburnum lantanoides — alderleaf viburnum
* Viburnum lentago — nannyberry
* Viburnum nudum — possum-haw viburnum
* Viburnum opulus — guelder-rose viburnum
* Viburnum rafinesquianum — downy arrowwood
* Viburnum recognitum — northern arrowwood

## Agavaceae

* Yucca filamentosa — common yucca
* Yucca glauca — small soapweed yucca

## Alismataceae

* Alisma gramineum — narrowleaf water-plantain
* Alisma subcordatum — broad-leaved water-plantain
* Alisma triviale — northern water-plantain
* Sagittaria brevirostra — short-beaked arrowhead
* Sagittaria calycina — longlobe arrowhead
* Sagittaria cristata — crested arrowhead
* Sagittaria cuneata — Wapatum arrowhead
* Sagittaria graminea — grassleaf arrowhead
* Sagittaria latifolia — broadleaf arrowhead
* Sagittaria rigida — sessile-fruit arrowhead

## Amaranthaceae

* Amaranthus albus — white pigweed
* Amaranthus californicus — California amaranth
* Amaranthus powellii — green amaranth
* Amaranthus rudis — tall amaranth
* Amaranthus tuberculatus — roughfruit amaranth

## Amblystegiaceae

* Amblystegium serpens — amblystegium moss
* Amblystegium varium
* Calliergon cordifolium — calliergon moss
* Calliergon giganteum — giant calliergon moss
* Calliergon megalophyllum
* Calliergon obtusifolium
* Calliergon orbicularicordatum
* Calliergon richardsonii
* Calliergon stramineum
* Calliergon trifarium
* Calliergonella cuspidata
* Campylium cardotii
* Campylium chrysophyllum
* Campylium halleri
* Campylium hispidulum
* Campylium polygamum — campylium moss
* Campylium radicale
* Campylium stellatum — yellow starry fen moss
* Conardia compacta
* Cratoneuron filicinum
* Drepanocladus aduncus — drepanocladus moss
* Drepanocladus brevifolius
* Drepanocladus capillifolius
* Drepanocladus crassicostatus
* Drepanocladus sendtneri
* Hamatocaulis lapponicus
* Hamatocaulis vernicosus
* Hygroamblystegium fluviatile
* Hygroamblystegium noterophilum
* Hygroamblystegium tenax
* Hygrohypnum alpestre
* Hygrohypnum alpinum
* Hygrohypnum bestii
* Hygrohypnum cochlearifolium
* Hygrohypnum duriusculum
* Hygrohypnum eugyrium
* Hygrohypnum luridum
* Hygrohypnum micans
* Hygrohypnum molle
* Hygrohypnum montanum
* Hygrohypnum norvegicum
* Hygrohypnum ochraceum
* Hygrohypnum polare
* Hygrohypnum smithii
* Hygrohypnum styriacum
* Hygrohypnum subeugyrium
* Leptodictyum humile
* Leptodictyum riparium
* Limprichtia cossonii
* Limprichtia revolvens — limprichtia moss
* Loeskypnum badium
* Loeskypnum wickesiae
* Palustriella commutata
* Palustriella decipiens
* Platylomella lescurii
* Pseudocalliergon turgescens
* Sanionia uncinata
* Sarmenthypnum sarmentosum
* Scorpidium scorpioides
* Warnstorfia exannulata — warnstorfia moss
* Warnstorfia fluitans — warnstorfia moss
* Warnstorfia procera
* Warnstorfia pseudostraminea
* Warnstorfia trichophylla
* Warnstorfia tundrae

## Anacardiaceae

* Rhus aromatica — fragrant sumac
* Rhus copallinum — winged sumac
* Rhus glabra — smooth sumac
* Rhus trilobata — skunkbush
* Rhus typhina — staghorn sumac
* Rhus × pulvinata
* Toxicodendron diversilobum — western poison-oak
* Toxicodendron radicans — eastern poison-ivy
* Toxicodendron rydbergii — northern poison-oak
* Toxicodendron vernix — poison-sumac

## Andreaeaceae

* Andreaea alpestris
* Andreaea blyttii
* Andreaea crassinervia
* Andreaea heinemannii
* Andreaea megistospora
* Andreaea mutabilis
* Andreaea nivalis
* Andreaea obovata
* Andreaea rothii
* Andreaea rupestris
* Andreaea schofieldiana
* Andreaea sinuosa

## Andreaeobryaceae

* Andreaeobryum macrosporum

## Aneuraceae

* Aneura pinguis
* Riccardia chamedryfolia
* Riccardia latifrons
* Riccardia multifida — comb liverwort
* Riccardia palmata

## Annonaceae

* Asimina triloba — pawpaw

## Anomodontaceae

* Anomodon attenuatus
* Anomodon minor
* Anomodon rostratus
* Anomodon rugelii
* Anomodon viticulosus
* Haplohymenium triste
* Pterogonium gracile

## Antheliaceae

* Anthelia julacea
* Anthelia juratzkana

## Anthocerotaceae

* Anthoceros agrestis
* Anthoceros fusiformis
* Anthoceros macounii

## Apiaceae

* Angelica archangelica — Norwegian angelica
* Angelica arguta — Lyall's angelica
* Angelica atropurpurea — great angelica
* Angelica dawsonii — Dawson's angelica
* Angelica genuflexa — kneeling angelica
* Angelica laurentiana — St. Lawrence angelica
* Angelica lucida — seacoast angelica
* Angelica venenosa — hairy angelica
* Berula erecta — wild parsnip
* Bupleurum americanum — American thorowax
* Chaerophyllum procumbens — spreading chervil
* Chaerophyllum tainturieri — Tainturier's chervil
* Cicuta bulbifera — bulb-bearing water-hemlock
* Cicuta douglasii — western water-hemlock
* Cicuta maculata — spotted water-hemlock
* Cicuta virosa — MacKenzie's water-hemlock
* Cnidium cnidiifolium — Jakutsk snow parsley
* Conioselinum chinense — Chinese hemlock-parsley
* Conioselinum gmelinii — western hemlock-parsley
* Cryptotaenia canadensis — Canada honewort
* Cymopterus acaulis — plains wavewing
* Daucus pusillus — southwestern carrot
* Erigenia bulbosa — harbinger-of-spring
* Glehnia littoralis — American glehnia
* Heracleum maximum — cow-parsnip
* Hydrocotyle americana — American water-pennywort
* Hydrocotyle umbellata — many-flowered pennywort
* Hydrocotyle verticillata — whorled pennywort
* Ligusticum calderi — Calder's lovage
* Ligusticum canbyi — Canby's wild lovage
* Ligusticum scoticum — Scotch lovage
* Ligusticum verticillatum — Idaho lovage
* Lilaeopsis chinensis — eastern lilæopsis
* Lilaeopsis occidentalis — western lilæopsis
* Lomatium ambiguum — streambank desert-parsley
* Lomatium brandegeei — Brandegee's desert-parsley
* Lomatium cous — cousroot desert-parsley
* Lomatium dissectum — fernleaf desert-parsley
* Lomatium foeniculaceum — carrotleaf desert-parsley
* Lomatium geyeri — Geyer's desert-parsley
* Lomatium grayi — mountain desert-parsley
* Lomatium macrocarpum — largefruit desert-parsley
* Lomatium martindalei — coast range lomatium
* Lomatium nudicaule — nakedstem desert-parsley
* Lomatium orientale — Oriental desert-parsley
* Lomatium sandbergii — Sandberg's desert-parsley
* Lomatium simplex — umbrella desert-parsley
* Lomatium triternatum — ternate desert-parsley
* Lomatium utriculatum — foothill desert-parsley
* Musineon divaricatum — wild parsley
* Oenanthe sarmentosa — water-parsley
* Osmorhiza berteroi — Chilean sweet-cicely
* Osmorhiza claytonii — hairy sweet-cicely
* Osmorhiza depauperata — bluntfruit sweet-cicely
* Osmorhiza longistylis — smoother sweet-cicely
* Osmorhiza occidentalis — western sweet-cicely
* Osmorhiza purpurea — purple sweet-cicely
* Oxypolis occidentalis — western cowbane
* Oxypolis rigidior — stiff cowbane
* Perideridia gairdneri — Gairdner's yampah
* Podistera macounii — Macoun's podistera
* Podistera yukonensis — Yukon podistera
* Sanicula arctopoides — bear's-foot sanicle
* Sanicula bipinnatifida — purple black snakeroot
* Sanicula canadensis — short-styled sanicle
* Sanicula crassicaulis — Pacific black snakeroot
* Sanicula graveolens — sierra sanicle
* Sanicula marilandica — Maryland black snakeroot
* Sanicula odorata — clustered black snakeroot
* Sanicula trifoliata — large-fruited sanicle
* Sium suave — hemlock water-parsnip
* Taenidia integerrima — yellow pimpernel
* Thaspium barbinode — hairyjoint meadow-parsnip
* Thaspium trifoliatum — purple meadow-parsnip
* Yabea microcarpa — California hedge-parsley
* Zizia aptera — golden alexanders
* Zizia aurea — common alexanders

## Apocynaceae

* Apocynum androsaemifolium — spreading dogbane
* Apocynum cannabinum — clasping-leaf dogbane
* Apocynum × floribundum — hybrid dogbane

## Aquifoliaceae

* Ilex glabra — ink-berry
* Ilex verticillata — black holly
* Nemopanthus mucronatus — mountain holly

## Araceae

* Arisaema dracontium — green dragon
* Arisaema triphyllum — swamp Jack-in-the-pulpit
* Calla palustris — wild calla
* Lysichiton americanus — yellow skunk-cabbage
* Peltandra virginica — green arrow-arum
* Symplocarpus foetidus — skunk-cabbage

## Araliaceae

* Aralia hispida — bristly sarsaparilla
* Aralia nudicaulis — wild sarsaparilla
* Aralia racemosa — American spikenard
* Oplopanax horridus — Devil's-club
* Panax quinquefolius — American ginseng
* Panax trifolius — dwarf ginseng

## Archidiaceae

* Archidium ohioense

## Aristolochiaceae

* Asarum canadense — Canada wild-ginger
* Asarum caudatum — long-tailed wild-ginger

## Arnelliaceae

* Arnellia fennica

## Asclepiadaceae

* Asclepias exaltata — poke milkweed
* Asclepias hirtella — green milkweed
* Asclepias incarnata — swamp milkweed
* Asclepias lanuginosa — woolly milkweed
* Asclepias ovalifolia — dwarf milkweed
* Asclepias purpurascens — purple milkweed
* Asclepias quadrifolia — whorled milkweed
* Asclepias speciosa — showy milkweed
* Asclepias sullivantii — prairie milkweed
* Asclepias syriaca — Kansas milkweed
* Asclepias tuberosa — butterfly milkweed
* Asclepias verticillata — whorled milkweed
* Asclepias viridiflora — green milkweed

## Aspleniaceae

* Asplenium adulterinum — ladder spleenwort
* Asplenium platyneuron — ebony spleenwort
* Asplenium rhizophyllum — walking-fern spleenwort
* Asplenium ruta-muraria — wallrue spleenwort
* Asplenium scolopendrium — hart's-tongue fern
* Asplenium trichomanes — maidenhair spleenwort
* Asplenium viride — green spleenwort

## Asteraceae

* Achillea millefolium — common yarrow
* Achillea sibirica — Siberian yarrow
* Adenocaulon bicolor — American trail-plant
* Ageratina altissima — white snakeroot
* Agoseris aurantiaca — orange-flowered false-dandelion
* Agoseris gaspensis — Gaspé Peninsula agoseris
* Agoseris glauca — pale goat-chicory
* Agoseris grandiflora — largeflower false-dandelion
* Agoseris heterophylla — annual false-dandelion
* Agoseris lackschewitzii — pink agoseris
* Almutaster pauciflorus — marsh alkali aster
* Ambrosia acanthicarpa — flatspine bursage
* Ambrosia artemisiifolia — annual ragweed
* Ambrosia chamissonis — silver bursage
* Ambrosia coronopifolia — western ragweed
* Ambrosia psilostachya — nakedspike ambrosia
* Ambrosia trifida — great ragweed
* Ambrosia × helenae
* Anaphalis margaritacea — pearly everlasting
* Antennaria alpina — alpine pussytoes
* Antennaria anaphaloides — handsome pussytoes
* Antennaria aromatica — aromatic pussytoes
* Antennaria corymbosa — meadow pussytoes
* Antennaria densifolia — dense-leaved antennaria
* Antennaria dimorpha — two-form pussytoes
* Antennaria eucosma — Newfoundland pussytoes
* Antennaria flagellaris — stoloniferous pussytoes
* Antennaria friesiana — Fries' pussytoes
* Antennaria howellii — small pussytoes
* Antennaria lanata — white-margined pussytoes
* Antennaria luzuloides — silvery-brown pussytoes
* Antennaria media — Stony Mountain pussytoes
* Antennaria microphylla — small-leaf cat's-foot
* Antennaria monocephala — single-head pussytoes
* Antennaria neglecta — field pussytoes
* Antennaria parlinii — Parlin's pussytoes
* Antennaria parvifolia — Nuttall's pussytoes
* Antennaria plantaginifolia — plantainleaf pussytoes
* Antennaria pulcherrima — handsome pussytoes
* Antennaria racemosa — Hooker's pussytoes
* Antennaria rosea — rosy pussytoes
* Antennaria stenophylla — narrowleaf pussytoes
* Antennaria umbrinella — brown pussytoes
* Antennaria × erigeroides
* Antennaria × macounii
* Antennaria × rousseaui
* Arnica amplexicaulis — streambank arnica
* Arnica angustifolia — narrowleaf leopardbane
* Arnica chamissonis — leafy arnica
* Arnica cordifolia — heart-leaved arnica
* Arnica frigida — snow leopardbane
* Arnica fulgens — hillside arnica
* Arnica gracilis — slender leopardbane
* Arnica lanceolata
* Arnica latifolia — mountain arnica
* Arnica lessingii — Lessing's arnica
* Arnica lonchophylla — northern arnica
* Arnica longifolia — longleaf arnica
* Arnica louiseana — Lake Louise arnica
* Arnica mollis — hairy arnica
* Arnica parryi — nodding arnica
* Arnica rydbergii — subalpine arnica
* Arnica sororia — twin arnica
* Arnica × diversifolia — rayless arnica
* Arnoglossum plantagineum — Indian-plantain
* Artemisia alaskana — Alaska wormwood
* Artemisia arctica — boreal sagebrush
* Artemisia biennis — biennial wormwood
* Artemisia campestris — Pacific wormwood
* Artemisia cana — hoary sagebrush
* Artemisia dracunculus — dragon wormwood
* Artemisia frigida — prairie sagebrush
* Artemisia furcata — three-fork wormwood
* Artemisia globularia — arctic wormwood
* Artemisia glomerata — Pacific alpine wormwood
* Artemisia laciniata — Siberian wormwood
* Artemisia lindleyana — Columbia River wormwood
* Artemisia longifolia — longleaf wormwood
* Artemisia ludoviciana — white sagebrush
* Artemisia michauxiana — Michaux's wormwood
* Artemisia rupestris — rock wormwood
* Artemisia suksdorfii — coastal wormwood
* Artemisia tilesii — Tilesius' wormwood
* Artemisia tridentata — big sagebrush
* Artemisia tripartita — three-tip sagebrush
* Aster alpinus — alpine aster
* Baccharis halimifolia — eastern baccharis
* Balsamorhiza deltoidea — deltoid balsamroot
* Balsamorhiza sagittata — arrowleaf balsamroot
* Bidens amplissima — Vancouver Island beggarticks
* Bidens cernua — nodding beggarticks
* Bidens connata — purplestem beggarticks
* Bidens coronata — tickseed sunflower
* Bidens discoidea — swamp beggarticks
* Bidens eatonii — Eaton's beggarticks
* Bidens frondosa — Devil's beggarticks
* Bidens heterodoxa — Connecticut beggarticks
* Bidens hyperborea — estuary beggarticks
* Bidens tripartita — three-lobe beggarticks
* Bidens vulgata — tall bur-marigold
* Boltonia asteroides — aster-like boltonia
* Brickellia grandiflora — tassel flower
* Brickellia oblongifolia — narrowleaf brickell-bush
* Cacaliopsis nardosmia — silvercrown
* Canadanthus modestus — great northern aster
* Chaenactis douglasii — hoary pincushion
* Chrysothamnus viscidiflorus — sticky-leaf rabbitbrush
* Cirsium brevistylum — shortstyle thistle
* Cirsium canescens — prairie thistle
* Cirsium discolor — field thistle
* Cirsium drummondii — Drummond's thistle
* Cirsium edule — edible thistle
* Cirsium flodmanii — Flodman's thistle
* Cirsium foliosum — leafy thistle
* Cirsium hillii — Hill's thistle
* Cirsium hookerianum — Hooker's thistle
* Cirsium muticum — swamp thistle
* Cirsium pitcheri — dune thistle
* Cirsium scariosum
* Cirsium undulatum — nodding thistle
* Cirsium × vancouverense
* Conyza canadensis — Canada horseweed
* Coreopsis lanceolata — sand coreopsis
* Coreopsis rosea — rose coreopsis
* Coreopsis tinctoria — golden tickseed
* Coreopsis tripteris — tall tickseed
* Crepis atribarba — slender hawk's-beard
* Crepis elegans — elegant hawk's-beard
* Crepis intermedia — smallflower hawk's-beard
* Crepis modocensis — Siskiyou hawk's-beard
* Crepis nana — dwarf alpine hawk's-beard
* Crepis occidentalis — grey hawk's-beard
* Crepis runcinata — nakedstem hawk's-beard
* Crocidium multicaule — common spring-gold
* Dendranthema arcticum — arctic daisy
* Doellingeria umbellata — flat-top white aster
* Echinacea angustifolia — narrow-leaved purple coneflower
* Echinacea pallida — pale purple coneflower
* Eclipta prostrata — false daisy
* Erechtites hieraciifolia — fireweed
* Ericameria nauseosa — rubber rabbitbrush
* Erigeron acris — bitter fleabane
* Erigeron alpiniformis — alpine fleabane
* Erigeron annuus — whitetop fleabane
* Erigeron asper — rough fleabane
* Erigeron aureus — alpine yellow fleabane
* Erigeron borealis — boreal fleabane
* Erigeron caespitosus — cæspitose fleabane
* Erigeron compositus — dwarf mountain fleabane
* Erigeron corymbosus — longleaf fleabane
* Erigeron divergens — spreading fleabane
* Erigeron elatus — tall bitter fleabane
* Erigeron evermannii — Evermann's fleabane
* Erigeron filifolius — threadleaf fleabane
* Erigeron flagellaris — running fleabane
* Erigeron formosissimus — beautiful fleabane
* Erigeron glabellus — smooth fleabane
* Erigeron grandiflorus — largeflower fleabane
* Erigeron humilis — low fleabane
* Erigeron hyperboreus — hyperboreal fleabane
* Erigeron hyssopifolius — daisy fleabane
* Erigeron lackschewitzii — front range fleabane
* Erigeron lanatus — woolly fleabane
* Erigeron leibergii — Leiberg's fleabane
* Erigeron linearis — linearleaf fleabane
* Erigeron lonchophyllus — short-ray fleabane
* Erigeron mexiae — Mex' fleabane
* Erigeron ochroleucus — buff fleabane
* Erigeron pallens — pale fleabane
* Erigeron peregrinus — foreign fleabane
* Erigeron philadelphicus — Philadelphia fleabane
* Erigeron poliospermus — hairyseed fleabane
* Erigeron pulchellus — robin's-plantain
* Erigeron pumilus — shaggy fleabane
* Erigeron purpuratus — purple fleabane
* Erigeron radicatus — tap-rooted fleabane
* Erigeron salishii — Salish's daisy
* Erigeron scotteri — Scotter's fleabane
* Erigeron speciosus — Aspen fleabane
* Erigeron strigosus — daisy fleabane
* Erigeron subtrinervis — three-nerve fleabane
* Erigeron uniflorus — one-flower fleabane
* Erigeron × arthurii
* Erigeron yukonensis — Yukon fleabane
* Eriophyllum lanatum — common woolly-sunflower
* Eucephalus engelmannii — Engelmann's aster
* Eucephalus paucicapitatus — olympic aster
* Eupatorium altissimum — tall boneset
* Eupatorium dubium — joe-pye thoroughwort
* Eupatorium fistulosum — hollow joe-pyeweed
* Eupatorium maculatum — spotted joe-pyeweed
* Eupatorium perfoliatum — common boneset
* Eupatorium purpureum — sweet joe-pyeweed
* Eupatorium × truncatum
* Eurybia conspicua — showy aster
* Eurybia divaricata — white wood-aster
* Eurybia macrophylla — largeleaf wood-aster
* Eurybia merita — arctic aster
* Eurybia pygmaea — pygmy wood-aster
* Eurybia radula — rough wood-aster
* Eurybia radulina — roughleaf aster
* Eurybia schreberi — Schreiber's aster
* Eurybia sibirica — Siberian aster
* Euthamia caroliniana — slender fragrant goldenrod
* Euthamia galetorum — narrowleaf fragrant goldenrod
* Euthamia graminifolia — flat-top fragrant goldenrod
* Euthamia gymnospermoides — viscid bushy goldenrod
* Euthamia occidentalis — western fragrant goldenrod
* Gaillardia aristata — great blanket-flower
* Gaillardia pulchella — firewheel blanket-flower
* Gamochaeta ustulata — featherweed
* Gnaphalium obtusifolium — fragrant cudweed
* Gnaphalium palustre — western marsh cudweed
* Gnaphalium viscosum — winged cudweed
* Grindelia hirsutula — hairy gumweed
* Grindelia integrifolia — Puget Sound gumweed
* Grindelia nana — Idaho gumweed
* Grindelia nuda — curly-top gumweed
* Grindelia squarrosa — broadleaf gumweed
* Grindelia stricta — Oregon gumweed
* Gutierrezia sarothrae — broom snakeweed
* Helenium autumnale — common sneezeweed
* Helianthella uniflora — Rocky Mountain rockrose
* Helianthus annuus — common sunflower
* Helianthus couplandii — Coupland's sunflower
* Helianthus decapetalus — thin-leaved sunflower
* Helianthus divaricatus — woodland sunflower
* Helianthus giganteus — tall sunflower
* Helianthus maximiliani — Maximillian's sunflower
* Helianthus nuttallii — Nuttall's sunflower
* Helianthus pauciflorus — stiff sunflower
* Helianthus petiolaris — prairie sunflower
* Helianthus strumosus — paleleaf sunflower
* Helianthus tuberosus — Jerusalem artichoke
* Helianthus × alexidis
* Helianthus × laetiflorus — hybrid prairie sunflower
* Helianthus × luxurians
* Heliopsis helianthoides — smooth oxeye
* Heterotheca villosa — hairy false goldenaster
* Hieracium albiflorum — whiteflower hawkweed
* Hieracium canadense — Canada hawkweed
* Hieracium cynoglossoides — hound's-tongue hawkweed
* Hieracium gracile — alpine hawkweed
* Hieracium groenlandicum — Greenland hawkweed
* Hieracium gronovii — hairy hawkweed
* Hieracium kalmii — Kalm's hawkweed
* Hieracium laevigatum — smooth hawkweed
* Hieracium marianum — Maryland hawkweed
* Hieracium paniculatum — panicled hawkweed
* Hieracium plicatum — boreal hawkweed
* Hieracium robinsonii — Robinson's hawkweed
* Hieracium scabrum — rough hawkweed
* Hieracium scouleri — Scouler's hawkweed
* Hieracium triste — woolly hawkweed
* Hieracium umbellatum — umbellate hawkweed
* Hieracium venosum — rattlesnake hawkweed
* Hieracium × dutillyanum
* Hieracium × fassettii
* Hieracium × fernaldii
* Hieracium × flagellare
* Hieracium × grohii
* Hieracium × stoloniflorum
* Hymenopappus filifolius — fineleaf woolly-white
* Hymenoxys richardsonii — Richardson's bitterweed
* Ionactis linariifolius — flaxleaf aster
* Ionactis stenomeres — Rocky Mountain aster
* Iva axillaris — small-flowered marsh-elder
* Iva frutescens — bigleaf marsh-elder
* Jaumea carnosa — fleshy jaumea
* Krigia biflora — two-flower dwarf-dandelion
* Krigia virginica — Virginia dwarf-dandelion
* Lactuca biennis — tall blue lettuce
* Lactuca canadensis — Canada lettuce
* Lactuca floridana — woodland lettuce
* Lactuca hirsuta — hairy lettuce
* Lactuca ludoviciana — western lettuce
* Lactuca tatarica — Tartarian lettuce
* Lactuca terrae-novae — Newfoundland lettuce
* Lasthenia maritima — maritime goldfields
* Leucanthemum integrifolium — entire-leaf daisy
* Liatris aspera — tall gayfeather
* Liatris cylindracea — slender blazingstar
* Liatris ligulistylis — strapstyle gayfeather
* Liatris punctata — dotted gayfeather
* Liatris spheroidea — spherical gayfeather
* Liatris spicata — marsh blazingstar
* Liatris × creditonensis
* Liatris × gladewitzii
* Luina hypoleuca — littleleaf silverback
* Lygodesmia juncea — rush skeletonplant
* Machaeranthera canescens — hoary tansy-aster
* Machaeranthera grindelioides — western aster
* Machaeranthera pinnatifida — spiny goldenaster
* Madia exigua — little tarweed
* Madia glomerata — mountain tarweed
* Madia gracilis — grassy tarweed
* Madia madioides — woodland tarweed
* Madia minima — smallhead tarweed
* Matricaria discoidea — pineapple-weed chamomile
* Megalodonta beckii — Beck's water-marigold
* Microseris bigelovii — coast microseris
* Microseris borealis — northern microseris
* Microseris lindleyi — Lindley's silverpuffs
* Microseris nutans — nodding silverpuffs
* Mikania scandens — climbing hempweed
* Nothocalais cuspidata — prairie false-dandelion
* Nothocalais troximoides — weevil false-dandelion
* Oclemena acuminata — whorled aster
* Oclemena nemoralis — bog aster
* Oclemena × blakei — Blake's aster
* Oligoneuron album — prairie goldenrod
* Oligoneuron houghtonii — Houghton's goldenrod
* Oligoneuron ohioense — Ohio goldenrod
* Oligoneuron riddellii — Riddell's goldenrod
* Oligoneuron rigidum — stiff goldenrod
* Oligoneuron × bernardii
* Oligoneuron × krotkovii
* Oligoneuron × lutescens — upland aster
* Oligoneuron × maheuxii
* Omalotheca norvegica — Norwegian cudweed
* Omalotheca supina — alpine cudweed
* Omalotheca sylvatica — woodland cudweed
* Packera aurea — golden ragwort
* Packera cana — silvery ragwort
* Packera contermina — northwestern groundsel
* Packera cymbalaria — dwarf arctic groundsel
* Packera hyperborealis — boreal groundsel
* Packera indecora — plains ragwort
* Packera macounii — Siskiyou Mountains butterweed
* Packera moresbiensis — Queen Charlotte groundsel
* Packera obovata — roundleaf groundsel
* Packera ogotorukensis — Ogotoruk Creek groundsel
* Packera pauciflora — few-flower ragwort
* Packera paupercula — balsam ragwort
* Packera plattensis — prairie ragwort
* Packera pseudaurea — western golden groundsel
* Packera schweinitziana — Robbin's squawweed
* Packera streptanthifolia — cleftleaf ragwort
* Packera tridenticulata — three-tooth groundsel
* Petasites frigidus — arctic butterbur
* Petasites sagittatus — arrowleaf sweet colt's-foot
* Petasites × vitifolius
* Picradeniopsis oppositifolia — oppositeleaf false bahia
* Polymnia canadensis — whiteflower leafcup
* Prenanthes alata — western rattlesnake-root
* Prenanthes alba — white rattlesnake-root
* Prenanthes altissima — tall rattlesnake-root
* Prenanthes nana — dwarf rattlesnake-root
* Prenanthes racemosa — glaucous rattlesnake-root
* Prenanthes sagittata — arrowleaf rattlesnake-root
* Prenanthes trifoliolata — three-leaved rattlesnake-root
* Prenanthes × mainensis
* Pseudognaphalium canescens — Wright's cudweed
* Psilocarphus brevissimus — round woolly-heads
* Psilocarphus elatior — tall woolly-heads
* Psilocarphus tenellus — slender woolly-heads
* Pyrrocoma carthamoides — largeflower goldenweed
* Pyrrocoma lanceolata — lance-leaved goldenweed
* Pyrrocoma uniflora — plantain goldenweed
* Ratibida columnifera — upright prairie coneflower
* Ratibida pinnata — greyhead prairie coneflower
* Rudbeckia fulgida — orange coneflower
* Rudbeckia hirta — black-eyed susan
* Rudbeckia laciniata — cut-leaved coneflower
* Saussurea americana — American saw-wort
* Saussurea angustifolia — narrowleaf saw-wort
* Saussurea densa — clustered saw-wort
* Saussurea viscida — sticky saw-wort
* Senecio congestus — marsh ragwort
* Senecio cymbalarioides — cleftleaf groundsel
* Senecio elmeri — Elmer's ragwort
* Senecio eremophilus — desert groundsel
* Senecio fremontii — Fremont's ragwort
* Senecio hydrophiloides — sweet marsh ragwort
* Senecio hydrophilus — great swamp ragwort
* Senecio integerrimus — entire-leaf ragwort
* Senecio lugens — blacktip groundsel
* Senecio megacephalus — Nuttall's ragwort
* Senecio pseudoarnica — seabeach groundsel
* Senecio sheldonensis — Mount Sheldon groundsel
* Senecio triangularis — arrowleaf groundsel
* Sericocarpus rigidus — Curtus' aster
* Shinnersoseris rostrata — annual skeletonweed
* Silphium laciniatum — compass plant
* Silphium perfoliatum — cup-plant
* Silphium terebinthinaceum — prairie rosinweed
* Sinosenecio newcombei — Newcombe's groundsel
* Solidago altissima — tall goldenrod
* Solidago arguta — cutleaf goldenrod
* Solidago bicolor — white goldenrod
* Solidago caesia — bluestem goldenrod
* Solidago calcicola — rock goldenrod
* Solidago canadensis — Canada goldenrod
* Solidago cutleri — Cutler's goldenrod
* Solidago flexicaulis — broad-leaved goldenrod
* Solidago gigantea — smooth goldenrod
* Solidago hispida — hairy goldenrod
* Solidago juncea — early goldenrod
* Solidago latissimifolia — Elliott's goldenrod
* Solidago macrophylla — largeleaf goldenrod
* Solidago missouriensis — Missouri goldenrod
* Solidago mollis — ground goldenrod
* Solidago multiradiata — alpine goldenrod
* Solidago nemoralis — field goldenrod
* Solidago patula — roundleaf goldenrod
* Solidago puberula — downy goldenrod
* Solidago rugosa — roughleaf goldenrod
* Solidago sempervirens — seaside goldenrod
* Solidago simplex — sticky goldenrod
* Solidago speciosa — showy goldenrod
* Solidago squarrosa — squarrose goldenrod
* Solidago uliginosa — bog goldenrod
* Solidago ulmifolia — elmleaf goldenrod
* Solidago victorinii — Victorin's goldenrod
* Solidago × asperula
* Solidago × beaudryi
* Solidago × erskinei
* Solidago × luteus
* Solidago × raymondii
* Stenotus acaulis — stemless mock goldenweed
* Stenotus armerioides — thrift mock goldenweed
* Stenotus macleanii — MacLean's goldenweed
* Stephanomeria minor — narrowleaf skeletonplant
* Stephanomeria runcinata — desert skeletonplant
* Stephanomeria spinosa — thorny wire-lettuce
* Symphyotrichum anticostense — Anticosti aster
* Symphyotrichum ascendens — western aster
* Symphyotrichum boreale — boreal aster
* Symphyotrichum campestre — western meadow-aster
* Symphyotrichum ciliatum — alkali American-aster
* Symphyotrichum ciliolatum — Lindley's aster
* Symphyotrichum cordifolium — heartleaf aster
* Symphyotrichum dumosum — bushy aster
* Symphyotrichum eatonii — Eaton's aster
* Symphyotrichum ericoides — white heath aster
* Symphyotrichum falcatum — white prairie aster
* Symphyotrichum foliaceum — leafy-bracted aster
* Symphyotrichum frondosum — alkali aster
* Symphyotrichum hendersonii — Henderson's American-aster
* Symphyotrichum laeve — smooth blue aster
* Symphyotrichum lanceolatum — panicled aster
* Symphyotrichum lateriflorum — starved aster
* Symphyotrichum laurentianum — St. Lawrence aster
* Symphyotrichum novae-angliae — New England aster
* Symphyotrichum novi-belgii — longleaf aster
* Symphyotrichum ontarionis — Ontario aster
* Symphyotrichum oolentangiense — sky blue aster
* Symphyotrichum pilosum — white heath aster
* Symphyotrichum praealtum — willow aster
* Symphyotrichum prenanthoides — crooked-stem aster
* Symphyotrichum puniceum — swamp aster
* Symphyotrichum racemosum — small white aster
* Symphyotrichum robynsianum — Robyns' American-aster
* Symphyotrichum sericeum — western silvery aster
* Symphyotrichum shortii — Short's aster
* Symphyotrichum spathulatum — western mountain aster
* Symphyotrichum subspicatum — Douglas' aster
* Symphyotrichum subulatum — annual saltmarsh aster
* Symphyotrichum tradescantii — Tradescant's aster
* Symphyotrichum undulatum — wavyleaf aster
* Symphyotrichum urophyllum — white-arrow aster
* Symphyotrichum × amethystinum
* Symphyotrichum yukonense — Yukon aster
* Tanacetum bipinnatum — Lake Huron tansy
* Taraxacum carneocoloratum — pink dandelion
* Taraxacum eriophorum — wool-bearing dandelion
* Taraxacum lyratum — alpine dandelion
* Taraxacum officinale — common dandelion
* Taraxacum phymatocarpum — northern dandelion
* Tephroseris atropurpurea — dark purple groundsel
* Tephroseris kjellmanii — Kjellman's squawweed
* Tephroseris lindstroemii — twice-hairy groundsel
* Tephroseris yukonensis — Yukon groundsel
* Tetradymia canescens — grey horsebrush
* Tetraneuris acaulis — stemless four-nerve daisy
* Tetraneuris herbacea — lakeside daisy
* Thelesperma subnudum — border goldthread
* Tonestus lyallii — Lyall's haplopappus
* Townsendia condensata — cushion townsend-daisy
* Townsendia exscapa — silky townsend-daisy
* Townsendia hookeri — Hooker's townsend-daisy
* Townsendia parryi — Parry's townsend-daisy
* Tripleurospermum maritima — false chamomile
* Verbesina alternifolia — wingstem
* Vernonia fasciculata — fascicled ironweed
* Vernonia gigantea — giant ironweed
* Vernonia missurica — Missouri ironweed
* Xanthium strumarium — rough cocklebur

## Aulacomniaceae

* Aulacomnium acuminatum — acutetip aulacomnium moss
* Aulacomnium androgynum
* Aulacomnium heterostichum
* Aulacomnium palustre — aulacomnium moss
* Aulacomnium turgidum

## Aytoniaceae

* Asterella gracilis
* Asterella lindenbergiana
* Asterella saccata
* Asterella tenella
* Mannia fragrans
* Mannia pilosa
* Mannia sibirica
* Mannia triandra
* Reboulia hemisphaerica

## Azollaceae

* Azolla caroliniana — eastern mosquito-fern
* Azolla mexicana — Mexican mosquito-fern