# Flora of New York/Cyperaceae 1

| ← Poales (2) Juncaceae | Flora of New York — Poales (3) : Cyperaceae (1) Sclerieae, Cladieae, Schoeneae, Scirpeae | Flora of New York — Poales (3) : Cyperaceae (1) Sclerieae, Cladieae, Schoeneae, Scirpeae | Flora of New York — Poales (3) : Cyperaceae (1) Sclerieae, Cladieae, Schoeneae, Scirpeae | Flora of New York — Poales (3) : Cyperaceae (1) Sclerieae, Cladieae, Schoeneae, Scirpeae | → Poales (4) Cyperaceae (2) Cariceae |
| ← Poales (2) Juncaceae | Table of contents | Genus index | Protected species index | Invasive species index | → Poales (4) Cyperaceae (2) Cariceae |

## Family Cyperaceae

* The Cyperaceae (sedge family) contains grass-like monocots, most of which have stems with triangular cross-sections..
* Cyperaceae
* Mapanioideae
* Hypolytreae
* Chrysitricheae
* Cyperoideae
* Trilepideae
* Cladieae—Cladium mariscoides (twig rush)
* Bisboeckelereae
* Sclerieae—Scleria spp. (6 nut sedges, nut rushes)
* Carpheae
* Cryptangieae
* Schoeneae
* Rhynchosporeae—Rhynchospora spp. (13 beak sedges)
* Dulichieae—Dulichium arundinaceum (three-way sedge)
* Khaosokieae
* Calliscirpeae
* Scirpeae
* Scirpus spp. (19 bulrushes)
* Eriophorum spp. (5 cotton grasses)
* Trichophoreae—Trichophorum spp. (4 club sedges)
* Sumatroscirpeae
* Cariceae—Carex spp. (227 sedges)
* Eleocharideae—Eleocharis spp. (29 spike rushes)
* Abilgaardieae
* Fimbristylis spp. (3 fimbries)
* Bulbostylis capillaris (tufted hair sedge)
* Bolboschoeneae—Bolboschoenus spp. (7 tuberous bulrushes)
* Fuireneae—Fuirena spp. (2 tumbrella grasses)
* Schoenoplecteae—Schoenoplectus spp. (10 bulrushes)
* Pseudoschoeneae—Schoenoplectiella spp. (5 bulrushes)
* Cypereae—Cyperus spp. (37 flat sedges)
* ↑ Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 14, July 2017 (Page last updated: 05/25/2021). http://www.mobot.org/MOBOT/research/APweb/
* ↑ Isabel Larridon et al. (2021), A new classification of Cyperaceae (Poales) supported by phylogenomic data. J. Syst. Evol., 59: 852-895. https://doi.org/10.1111/jse.12757

### Subfamily Cyperoideae
#### Tribe Cladieae
##### Cladium

* Cladium mariscoidesFen-sedge, sawgrass or twig-sedge (Cladium) is a genus with few species, of which only Cladium mariscoides is known to New York State.
Poales — Cyperaceae — Cyperoideae — Cladieae — Cladium :
| Genus Cladium | Sawgrass | N.Y. Status | Images | Distribution | NY NPT |
| Cladium mariscoides (Muhl.) Torr.1817. Schoenus mariscoides  Muhl 1836. Cladium mariscoides  (Muhl.) Torr. 1891. Mariscus mariscoides  (Muhl.) Kuntze 1922. Cladium mariscoides  f. congestum   Fernald 1923. Mariscus mariscoides  f. congestum   (Fernald) Fernald | Twig rush ⓘ Smooth sawgrass ⓘ Smooth saw-grass ⓘ Fen sedge ⓘ | Native, CoC: 9, Secure, S5, G5 OBL Perennial, Graminoid | | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |

#### Tribe Sclerieae
##### Scleria

* Scleria triglomerata
Poales — Cyperaceae — Cyperoideae — Sclerieae — Scleria :
| Genus Scleria P.J.Bergius | Nutsedge / nutrush | N.Y. Status | Images | Distribution | NY NPT |
| Scleria verticillata Muhl. ex Willd.1805. Scleria verticillata  Muhl. ex Willd. 1837. Scleria tenella  Kunth | Low nut sedge, Low nutsedge, Low nutrushSclérie verticillée | Native, CoC: 10, Endangered, S1, G5 OBL Annual, Graminoid | | Essex, Genesee, Monroe, Nassau, Ontario, Queens, Seneca, Yates NYFA: 1 | USDA-NN Go Botany VASCAN ITIS FNA Tropicos Images Wikispecies |
| Scleria pauciflora Muhl. ex Willd.1805. Scleria pauciflora  Muhl. ex Willd. 1805. Scleria caroliniana  Willd. (i) 1871. Scleria pauciflora  var. caroliniana  Alph.Wood 1906. Scleria pauciflora  var. kansana  Fernald 1926. Scleria ciliata  var. pauciflora  (Muhl. ex Willd.) Kük. | Few-flowered nutsedge, Few-flowered nutrush, Papillose nutrush, Carolina nutrushSclérie pauciflore | Native, CoC: 10, Endangered, NYNHP: 1 FACU Perennial, Graminoid | | Dutchess, Nassau, Queens, Seneca, Suffolk NYFA: 1 | USDA-N0 Go Botany VASCAN FNA Tropicos Images Wikispecies |
| Genus Scleria triglomerata group | Nutsedge / nutrush | N.Y. Status | Images | Distribution | NY NPT |
| Scleria triglomerata Michx.1803. Scleria triglomerata  Michx. 1834. Cladium triglomeratum  (Michx.) Nees 1837. Scleria nitida  Willd. ex Kunth 1842. Trachylomia triglomerata  (Michx.) Nees 1855. Scleria flaccida  Steud. | Whip nut sedge, Whip nutsedge, Whip nutrush, Tall nutrush, WhipgrassSclérie à trois glomérules | Native, CoC: 10, Endangered, NYNHP: 1 FAC Perennial, Graminoid | | NYFA: 1 | USDA-NN Go Botany VASCAN ITIS FNA Tropicos LBJ Images Wikispecies |
| Scleria minor (Britton) W.Stone1885. Scleria triglomerata  var. gracilis  Britton 1896. Scleria triglomerata  var. minor  Britton 1912. Scleria minor  (Britton) W.Stone | Slender nut sedge, Slender nutrush | Native, CoC: 10, Endangered, NYNHP: 1 FACW Perennial, Graminoid | | NYFA: 1 | USDA-N0 Go Botany-0 FNA Tropicos Images Wikispecies |
| Genus Scleria reticularis group | Nutsedge / nutrush | N.Y. Status | Images | Distribution | NY NPT |
| Scleria reticularis Michx.1803. Scleria reticularis Michx. 1884. Scleria reticularis  var. reticularis  Michx. 1884. Scleria reticularis  var. pumila  Britton | Netted nut sedge, Netted nutsedge, Netted nutrush | Native, CoC: 10, Rare OBL Annual, Graminoid | | NYFA: 3 | USDA-NN Go Botany ITIS FNA Tropicos LBJ Images Wikispecies |
| Scleria muehlenbergii Steud. auct. Scleria setacea  non Poir. 1806 1841. Scleria muehlenbergii  Steud. 1885. Scleria reticularis  var. pubescens  Britton 1923. Scleria stevensiana  Britton | Muhlenberg's nut sedge, Muhlenberg's nutrush | Native, CoC: 10, Endangered FACW-FAC Annual/perennial, Graminoid | | NYFA: 1 | USDA-NN FNA Tropicos Images Wikispecies |
| ↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Scleria pauciflora var. caroliniana. Endangered, S1/G5T4T5. ↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Scleria triglomerata. Endangered, S1/G5. ↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Scleria minor. Endangered, S1/G4. ||||||

#### Tribe Rhynchosporeae

* Tribe Rhynchosporeae contains the single genus Rhynchospora.

##### Rhynchospora

* Rhynchospora albaBeak-rush or rhynchospore (Rhynchospora Vahl.)
* ↑ Rhynchospora in Flora of North America

###### Extant Rhynchospora species

Poales — Cyperaceae — Cyperoideae — Schoeneae — Rhynchospora :
| Genus Rhynchospora Vahl | Beaksedge | N.Y. Status | Distribution | NY NPT |
| Rhynchospora alba (L.) Vahl1753. Schoenus albus  L. 1792. Mariscus albus  (L.) Gilib. (i) 1796. Scirpus albus  (L.) Salisb. 1805. Rhynchospora alba  (L.) Vahl 1917. Triodon albus  (L.) Farw. 1920. Phaeocephalum album  (L.) House 1929. Dichromena alba  (L.) J.F. Macbr. | White beak sedge, White beaksedge, White beak-rush | Native, CoC: 10, Secure, S5, G5 OBL Perennial, Graminoid | NYFA: 5 iNat | USDA-NN Go Botany VASCAN ARS-GRIN Tropicos Images Wikispecies |
| Rhynchospora capitellata (Michx.) Vahl1803. Schoenus capitellatus  Michx. 1805. Rhynchospora capitellata  (Michx.) Vahl in… | Brownish beaksedge, Brownish beak-rush | Native, CoC: 5, Secure, S5, G5 OBL Perennial, Graminoid | NYFA: 5 iNat | USDA-NN Go Botany ARS-GRIN Images Wikispecies |
| Rhynchospora capillacea Torr.1823. Rhynchospora capillacea  Torr. | Horned beak-rush, Needle beaksedge | Native, CoC: 10, Likely secure, S4, G4 OBL Perennial, Graminoid | NYFA: 4 iNat | USDA-NN Go Botany Images Wikispecies |
| Rhynchospora fusca (L.) W.T.Aiton1810. Rhynchospora fusca  (L.) W.T.Aiton | Brown beaksedge, Brown beak-rush | Native, CoC: 10, Rare, S3-4, G4-5 OBL Perennial, Graminoid | NYFA: 17 counties iNat | USDA-NN Go Botany Images Wikispecies |
| Rhynchospora macrostachya Torr. ex A.Gray1835. Rhynchospora macrostachya  Torr. ex A.Gray | Tall beaked-rush, Tall horned beaksedge, Tall beaksedge | Native, CoC: 10, Rare, S2, G4 OBL Perennial, Graminoid | Nassau, Oswego, Suffolk, Westchester NYFA: 3 iNat | USDA-N0 Go Botany ITIS FNA Images Wikispecies |
| Rhynchospora scirpoides (Torr.) Griseb.1866. Rhynchospora scirpoides  (Torr.) Griseb. | Longbeak beaksedge, Long-beaked bald-rush | Native, CoC: 10, Rare, S2, G4 OBL Annual, Graminoid | Suffolk (1927-94), Westchester (2001) NYFA: 3 iNat | USDA-N0 Go Botany Images Wikispecies |
| Rhynchospora inundata (Oakes) Fernald1918. Rhynchospora inundata  (Oakes) Fernald | Horned beak sedge ⓘ Drowned horned-rush ⓘ Narrowfruit horned-beaksedge ⓘ Narrowfruit horned beaksedge ⓘ Narrow-fruited beaksedge ⓘ | Native, CoC: 10, Threatened, S1, G3-4 OBL Perennial, Graminoid | Suffolk (1871-1994) NYFA: 2 iNat | USDA-N0 Go Botany Images Wikispecies |
| Rhynchospora nitens (Vahl) A.Gray1867. Rhynchospora nitens  (Vahl) A.Gray | Bald-rush, Short-beaked beaksedge | Native, CoC: 10, Threatened, S2, G? OBL Annual, Graminoid | Suffolk (1872-1993) NYFA: 2 iNat | USDA-NN Go Botany Images Wikispecies |

###### Extirpated Rhynchospora species

Poales — Cyperaceae — Cyperoideae — Schoeneae — Rhynchospora :
| Genus Rhynchospora Vahl | Beaksedge | N.Y. Status | Images | Distribution | NY NPT |
| Rhynchospora chalarocephala Fernald & Gale1940. Rhynchospora chalarocephala in… | Loosehead beaksedge, Loose-head beak-rush | Native, CoC: 10, Likely extirpated, Last collected 1932, SX, G5 OBL Perennial, Graminoid | | Suffolk (1927-1932) NYFA: Z | USDA-N0 FNA Images Wikispecies |
| Rhynchospora torreyana A.Gray1835. Rhynchospora torreyana  A.Gray | Torrey beak-rush, Torrey's beaksedge | Native, CoC: 10, Likely extirpated, Last collected 1929, SX, G4 FACW Perennial, Graminoid | | Suffolk (1929) NYFA: 1Z | USDA-N0 Go Botany Images Wikispecies |
| Rhynchospora recognita (Gale) Kral1920. Phaeocephalum cymosum  House 1931. Dichromena cymosa  J.F.Macbr. 1944. Rhynchospora globularis  var. recognita  Gale 1999. Rhynchospora recognita  (Gale) Kral | Globe beak-rush | Native, CoC: 10, Likely extirpated, Last collected 1924, SX, G5? FACW Perennial, Graminoid | | NYFA: Z | USDA-N0 FNA Tropicos Images Wikispecies |
| Rhynchospora pallida M.A.Curtis | Pale beaksedge, Pale beak-rush | Native, Likely extirpated, Last collected 1921 Perennial, Graminoid | | NYFA: Z | USDA-N0 Images Wikispecies |
| Rhynchospora gracilenta A.Gray | Slender beaksedge | Native, Likely extirpated, Last collected 1843 Perennial, Graminoid | | NYFA: Z | USDA-N0 Images Wikispecies |
| Rhynchospora globularis (Chapm.) Small var. globularis1933. Rhynchospora globularis (Chapm.) Small | Globe beaksedge | Native, No recent reports Perennial, Graminoid | | NYFA: Z | USDA-N0 Images Wikispecies |
| Rhynchospora cephalantha A.Gray1835. Rhynchospora cephalantha  A.Gray | Bunched beaksedge, Capitate beak-rush | Native, Likely extirpated, No sources Perennial, Graminoid | | NYFA: Z | USDA-N0 Images Wikispecies |
| Genus Rhynchospora Vahl (excluded taxa) | Beaksedge | N.Y. Status | Images | Distribution | NY NPT |
| Rhynchospora macra | Large beaksedge | N. America native, N.Y. excluded | | NYFA-Excluded | USDA-N0 FNA Images Wikispecies |
| Rhynchospora glomerata | Clustered beaksedge | N. America native, N.Y. excluded | | NYFA-Excluded | USDA-N0 FNA Images Wikispecies |

#### Tribe Dulichieae

* Tribe Dulichieae is characterized by distichous spikelets and flowers, scale-like spikelet prophylls subtending flowers, and long narrow beaks on fruits. Genera include Blysmus (3 sp.), Blysmopsis (1 sp.), and Dulichium (1 sp.).
* ↑ Isabel Larridon et al. (2021), A new classification of Cyperaceae (Poales) supported by phylogenomic data. J. Syst. Evol., 59: 852-895. https://doi.org/10.1111/jse.12757

##### Dulichium

* Dulichium arundinaceum
Poales — Cyperaceae — Cyperoideae — Dulichieae — Dulichium :
| Genus Dulichium | Threeway sedge | N.Y. Status | Images | Distribution | NY NPT |
| Dulichium arundinaceum (L.) Britton var. arundinaceum1753. Cyperus arundinaceus L. in Sp. Pl.:44 1753. Cyperus ferrugineus L. in Sp. Pl.:44 1762. Schoenus spathaceus L. in Sp. Pl., ed. 2.:63 1767. Cyperus spathaceus (L.) L. in Syst. Nat., ed. 12. 2:735 1803. Scirpus spathaceus (L.) Michx. in Fl. Bor.-Amer. 1:32 1805. Dulichium canadense Rich. in C.H.Persoon, Syn. Pl. 1:65 1805. Dulichium spathaceum (L.) Rich. in C.H.Persoon, Syn. Pl. 1:65 1805. Schoenus angustifolius Vahl in Enum. Pl. Obs. 2:225 1816. Sparganium trifidum Poir. in J.B.A.M.de Lamarck, Encycl., Suppl. 4: 723 1822. Scirpus tegetalis Burch. in Trav. S. Africa 1: 260 1894. Dulichium arundinaceum (L.) Britton in Bull. Torrey Bot. Club 21:29 | Three-way sedge Threeway sedgeDuliche roseau | Native, CoC: 8, Secure OBL Perennial, Graminoid, Heliophily: 8 | | NYFA: 59 counties iNat: 50 counties | USDA-NN POWO FSUS Go Botany VASCAN Images Wikispecies |

#### Tribe Scirpeae
##### Eriophorum

Poales — Cyperaceae — Cyperoideae — Scirpeae — Eriophorum :
| Genus Eriophorum | Cottongrass | N.Y. Status | Images | Distribution | NY NPT |
| Eriophorum virginicum L. | Tawny cottongrass, Tawny cotton-grass | Native, Secure | | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |
| Eriophorum vaginatum L.1753. Eriophorum vaginatum  L. 1874. Eriophorum callithrix  Lange 1910. Eriophorum fauriei  E.G.Camus 1925. Eriophorum spissum  Fernald 1931. Eriophorum scabridum  Ohwi | Tussock cottongrass, Tussock cotton-grass, Sheathed cottongrass, Hare's-tail cottongrassLinaigrette à large gaine, Linaigrette gainée | Native, Secure | | NYFA: 5 | USDA-NN Go Botany ARS-GRIN FNA Images Wikispecies |
| Eriophorum tenellum Nutt. | Fewnerved cottongrass, Rough cotton-grass | Native, Secure | | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |
| Eriophorum viridicarinatum (Engelm.) Fernald | Green keeled cotton-grass, Thinleaf cottonsedge | Native, Secure | | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |
| Eriophorum gracile W.D.J.Koch | Slender cottongrass, Slender cotton-grass | Native, Likely secure | | NYFA: 4 | USDA-NN Go Botany Images Wikispecies |
| Genus Eriophorum (excluded taxa) | Cottongrass | N.Y. Status | Images | Distribution | NY NPT |
| Eriophorum angustifolium Honck. ssp. angustifolium1753. Eriophorum polystachion  L. nom. utique rej. 1782. E. angustifolium  Honck. 1819. E. angustifolium  var. majus  F.W.Schultz 1936. E. angustifolium  ssp. scabriusculum  Hultén (uncertain application) 1962. E. angustifolium  ssp. subarcticum  (V.N.Vassil.) Hultén | Narrow-leaved cotton-grass, Tall cottongrassLinaigrette   à feuilles étroites | N. America native, N.Y. excluded | | NYFA-Excluded | USDA-NN Go Botany FNA Tropicos Images Wikispecies |

##### Scirpus

* Scirpus atrovirensBulrushes (Scirpus spp.) previously included Bolboschoenus, Schoenoplectus, and Trichophorum.
Poales — Cyperaceae — Cyperoideae — Scirpeae — Scirpus :
| Genus Scirpus | Bulrush | N.Y. Status | Distribution | NY NPT |
| Scirpus pendulus Muhl.1817. Scirpus pendulus Muhl. in Descr. Gram.:44 1817. Scirpus lineatus Muhl. in Descr. Gram.:45, nom. illeg. 1931. Scirpus lineatus f. elongatus Eames in Rhodora 33:168 1989. Scirpus pendulus f. elongatus (Eames) C.F.Reed in Phytologia 67:453 | Pendulous bulrush Nodding bulrush Rufous bulrushScirpe a epis pendants Scirpe pendant | Native, CoC: 1, Secure, S5, G5 OBL Perennial, Graminoid, Heliophily: 7 | NYFA: 37 counties iNat: 16 counties GBIF: present in NY | USDA-NN POWO FSUS Go Botany VASCAN Images Wikispecies |
| Scirpus hattorianus Makino1928. Scirpus atrovirens  subvar. viviparus Farw. 1933. Scirpus hattorianus  Makino 2012. Scirpus atrovirens  ssp. hattorianus  Makino | Mosquito bulrush, Early dark-green bulrushScirpe de Hattori | Native, CoC: 1, Secure OBL Perennial, Graminoid | NYFA: 5 | USDA-NN Go Botany VASCAN FNA Tropicos Images Wikispecies |
| Scirpus atrovirens Willd.1809. Scirpus atrovirens  Willd. 1906. Scirpus atrovirens  var. pycnocephalus  Fernald | Dark-green bulrush, Darkgreen bulrush, Green bulrush, Black bulrushScirpe noirâtre, Scirpe vert sombre | Native, CoC: 2, Secure OBL Perennial, Graminoid | NYFA: 5 | USDA-NN Go Botany VASCAN ARS-GRIN FNA Tropicos Images Wikispecies |
| Scirpus cyperinus (L.) Kunth1762. Eriophorum cyperinum  L. 1805. Trichophorum cyperinum  (L.) Pers. 1837. Scirpus cyperinus  (L.) Kunth 1856. Scirpus eriophorum  var. cyperinus  A.Gray 1906. Scirpus cyperinus  var. pelius  Fernald 1945. Scirpus rubricosus  Fernald | Woolgrass, Common woolly bulrush, Common wool-grass, Common woolsedge, Brown woolly sedgeScirpe souchet | Native, CoC: 4, Secure OBL-FACW Perennial, Graminoid | NYFA: | USDA-NN Go Botany VASCAN ARS-GRIN FNA Tropicos Images Wikispecies |
| Scirpus atrocinctus Fernald1899. Scirpus atrocinctus  Fernald 1899. Scirpus atrocinctus  var. brachypodus  Fernald 1900. Eriophorum cyperinum  var. atrocinctum  Farw. 1946. Scirpus cyperinus  var. brachypodus  Gilly 1981. Trichophorum atrocinctum  Á.Löve & D.Löve | Blackgirdle bulrush, Black-girdled wool-grass, Black-girdled woolsedge, Woolgrass bulrushScirpe à ceinture noire | Native, CoC: 5, Secure OBL-FACW Perennial, Graminoid | NYFA: 5 | USDA-NN Go Botany VASCAN ITIS FNA Tropicos Images Wikispecies |
| Scirpus microcarpus J.Presl & C.Presl1828. Scirpus microcarpus  J.Presl & C.Presl 1900. Scirpus rubrotinctus  Fernald 1922. Scirpus microcarpus  var. confertus  (Fernald) House | Barber-pole bulrush ⓘ Panicled bulrush Small-fruited bulrush | Native, CoC: 6, Secure OBL Perennial, Graminoid | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |
| Scirpus polyphyllus Vahl | Leafy bulrush | Native, CoC: 6, Secure OBL Perennial, Graminoid | NYFA: 5 | USDA-N0 Go Botany Images Wikispecies |
| Scirpus pedicellatus Fernald | Stalked bulrush, Stalked woolgrass | Native, CoC: 7, Secure OBL Perennial, Graminoid | NYFA: 5 | USDA-NN Go Botany Images Wikispecies |
| Scirpus expansus Fernald1900. Scirpus sylvaticus  var. bissellii  Fernald 1923. Scirpus microcarpus  var. bissellii  (Fernald) House 1943. Scirpus expansus  Fernald | Wood bulrush, Woodland beak-rush, Woodland bulrush | Native, CoC: 6, Likely secure OBL Perennial, Graminoid | NYFA: 4 | USDA-NN Go Botany Images Wikispecies |
| Scirpus georgianus R.M.Harper1900. Scirpus georgianus  R.M.Harper 1921. Scirpus atrovirens  var. georgianus  Fernald | Georgia bulrush | Native, CoC: 1, Endangered, NYNHP: 1 OBL Perennial, Graminoid | NYFA: 1 | USDA-NN Go Botany FNA Tropicos Images Wikispecies |
| Scirpus ancistrochaetus Schuyler | Northeastern bulrush | Native, CoC: 10, Endangered, FWS OBL Perennial, Graminoid | NYFA: 1 | USDA-NN Go Botany Images Wikispecies Note: |
| Scirpus longii Fernald1911. Scirpus longii Fernald | Long's bulrushScirpe de Long | Native, Likely extirpated | NYFA: Z | USDA-NN Go Botany VASCAN ARS-GRIN ITIS FNA Tropicos NatureServe BONAP Images Wikispecies |
| ↑ New York Natural Heritage Program. 2024. Online Conservation Guide for Scirpus georgianus. Endangered, S1/G5. ||||||

##### Scirpus hybrids

Poales — Cyperaceae — Cyperoideae — Scirpeae — Scirpus :
| Genus Scirpus natural hybrids | Hybrid wool-grass & bulrush | N.Y. Status | Images | Distribution | NY NPT |
| S. atrocinctus × cyperinus  Scirpus atrocinctus ×   Scirpus cyperinus | Hybrid wool-grass, Hybrid of  black-girdled wool-grass &  common wool-grass | Native, Unranked | | NYFA: U | Images Wikispecies |
| S. atrocinctus × hattorianus  Scirpus atrocinctus ×   Scirpus hattorianus | Hybrid bulrush, Hybrid of  black-girdled wool-grass &  mosquito bulrush | Native, Unranked | | NYFA: U | Images Wikispecies |
| S. atrovirens × hattorianus  Scirpus atrovirens ×   Scirpus hattorianus | Hybrid bulrush, Hybrid of  dark-green bulrush &  mosquito bulrush | Native, Unranked | | NYFA: U | Images Wikispecies |
| S. atrovirens × polyphyllus  Scirpus atrovirens ×   Scirpus polyphyllus | Hybrid bulrush, Hybrid of  dark-green bulrush &  leafy bulrush | Native, Unranked | | NYFA: U | Images Wikispecies |
| S. cyperinus × pedicellatus  Scirpus cyperinus ×   Scirpus pedicellatus | Hybrid wool-grass, Hybrid of  common wool-grass &  stalked wool-grass | Native, Unranked | | NYFA: U | Images Wikispecies |
| S. expansus × microcarpus  Scirpus expansus ×   Scirpus microcarpus | Hybrid bulrush, Hybrid of  wood bulrush &  barber-pole bulrush | Native, Unranked | | NYFA: U | Images Wikispecies |
| Genus Scirpus (excluded taxa) | Hybrid wool-grass | N.Y. Status | Images | Distribution | NY NPT |
| S. atrocinctus × pedicellatus  Scirpus atrocinctus ×   Scirpus pedicellatus | Hybrid wool-grass, Hybrid of  black-girdled wool-grass &  stalked wool-grass | N. America native, N.Y. excluded | | NYFA-Excluded | Images Wikispecies |
| S. atrovirens × cyperinus  Scirpus atrovirens ×   Scirpus cyperinus | Hybrid wool-grass, Hybrid of  black-girdled wool-grass &  common wool-grass | N. America native, N.Y. excluded | | NYFA-Excluded | Images Wikispecies |
| Scirpus × peckii Britton  Scirpus atrocinctus ×   Scirpus hattorianus1892. Scirpus × peckii  Britton | Peck's bulrushScirpe de Peck | N. America native, N.Y. excluded OBL Perennial, Graminoid | | NYFA: 3? | USDA-NN Go Botany VASCAN ITIS Images Wikispecies |

#### Tribe Trichophoreae

* Tribe Trichophoreae Léveillé-Bourret & J.R.Starr contains the single species Trichophorum.
* ↑ Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 14, July 2017 (Page last updated: 05/25/2021). http://www.mobot.org/MOBOT/research/APweb/

##### Trichophorum

* Trichophorum cespitosum
Poales — Cyperaceae — Cyperoideae — Scirpeae — Trichophorum :
| Genus Trichophorum | Bulrush | N.Y. Status | Distribution | NY NPT |
| Trichophorum alpinum (L.) Pers.1753. Eriophorum alpinum  L. 1805. Trichophorum alpinum  (L.) Pers. 1906. Scirpus hudsonianus  (Michx.) Fernald 1918. Leucocoma alpina  (L.) Rydb. 1971. Baeothryon alpinum  (L.) T.V.Egorova | Alpine bulrush, Alpine cotton-grass | Native, Secure | NYFA: 5 | USDA-NN Images Wikispecies |
| Trichophorum planifolium (Spreng.) Palla1913. Trichophorum planifolium  (Spreng.) Palla | Bashful bulrush | Native, Secure | NYFA: 5 | Images Wikispecies |
| Trichophorum cespitosum (L.) Hartm. ssp. cespitosum1849. Trichophorum cespitosum (L.) Hartm. | Deer's-hair club sedge, Deer's hair sedge, Deergrass, Deerhair bulrush, Tufted bulrush | Native, CoC: 10, Threatened FACU Perennial, Graminoid | NYFA: 2 | Images Wikispecies |
| Trichophorum clintonii (A.Gray) S.G.Sm.1995. Trichophorum clintonii (A.Gray) S.G.Sm. | Clinton's bulrush | Native, CoC: 10, Endangered FACU Perennial, Graminoid | NYFA: 1 | USDA-NN Images Wikispecies |