Cyperaceae of Maine
(Kingdom Plantae, Monocots)


(updated 22 September 2020)




Cyperaceae - sedge family
[information to be added]

Maine is home to 224 species in 14 genera (hybrids excluded). If you know which species you have or are interested in learning about, click on the appropriate link from the species list below. Otherwise, to determine which genus your belongs to, refer to the table below the species list.

   Bolboschoenus (4 species)
      Bolboschoenus fluviatilis - river tuber-bulrush
      Bolboschoenus maritimus - saltmarsh tuber-bulrush
      Bolboschoenus novae-angliae - New England tuber-bulrush
      Bolboschoenus robustus - sea-coast tuber-bulrush
   Bulbostylis (1 species)
      Bulbostylis capillaris - tufted hair-sedge
   Carex (? species)
      Carex adusta - swarthy sedge
      Carex albicans - white-tinged sedge
      Carex annectens - yellow-fruited sedge
      Carex appalachica - Appalachian sedge
      Carex arctata - drooping woodland sedge
      Carex argyrantha - silvery-flowered sedge
      Carex atlantica - prickly bog sedge
      Carex aurea - golden-fruited sedge
      Carex billingsii - Billings’ sedge
      Carex brunnescens - brownish sedge
      Carex buxbaumii - brown bog sedge
      Carex canescens - hoary sedge
      Carex communis var. communis - fibrous-rooted sedge
      Carex conoidea - open-field sedge
      Carex crawfordii - Crawford’s sedge
      Carex crinita - fringed sedge
      Carex cryptolepis - northeastern sedge
      Carex cumulata - clustered sedge
      Carex debilis - white-edged sedge
      Carex deflexa var. deflexa - northern sedge
      Carex deweyana - round-fruited short-scaled sedge
      Carex disperma - two-seeded sedge
      Carex eburnea - bristle-leaved sedge
      Carex echinata - star sedge
      Carex exilis - coast sedge
      Carex flava - yellow-green sedge
      Carex foenea - straw sedge
      Carex folliculata - northern long sedge
      Carex gracillima - graceful sedge
      Carex gynandra - nodding sedge
      Carex hormathodes - marsh straw sedge
      Carex houghtoniana - Houghton’l;s sedge
      Carex intumescens - greater bladder sedge
      Carex lacustris - lake-side sedge
      Carex lasiocarpa - woolly-fruited sedge
      Carex laxiflora - broad loose-flowered sedge
      Carex lenticularis - lake shore sedge
      Carex leptalea - bristle-stalk sedge
      Carex leptonervia - nerveless woodland sedge
      Carex limosa - mud sedge
      Carex lucorum ssp. lucorum - Blue Ridge sedge
      Carex lupulina - hop sedge
      Carex lurida - sallow sedge
      Carex magellanica - boreal bog sedge
      Carex merritt-fernaldii - Merritt Fernald’s sedge
      Carex nigra - smooth black sedge
      Carex normalis - greater straw sedge
      Carex novae-angliae - New England sedge
      Carex oligosperma - few-seeded sedge
      Carex ormostachya - necklace spike sedge
      Carex paleacea - chaffy sedge
      Carex pallescens - pale sedge
      Carex peckii - Peck’s sedge
      Carex pensylvanica - Pennsylvania sedge
      Carex pauciflora - few-flowered sedge
      Carex projecta - necklace sedge
      Carex pseudocyperus - cypress-like sedge
      Carex radiata - eastern star sedge
      Carex reznicekii - Reznicek’s sedge
      Carex scabrata - eastern rough sedge
      Carex scoparia - pointed broom sedge
      Carex siccata - dry land sedge
      Carex silicea - sea beach sedge
      Carex stipata - awl-fruited sedge
      Carex stricta - tussock sedge
      Carex tenera - quill sedge
      Carex tonsa - shaved sedge
      Carex torta - twisted sedge
      Carex trisperma - three-seeded sedge
      Carex umbellata - parasol sedge
      Carex utriculata - swollen-beaked sedge
      Carex vacillans - swinging sedge
      Carex vesicaria - lesser bladder sedge
      Carex viridula - little green sedge
      Carex vulpinoidea - common fox sedge
      Carex wiegandii - Wiegand’s sedge
   Cladium (1 species)
      Cladium mariscoides - smooth saw-sedge
   Cyperus (11 species)
      Cyperus bipartitus - shining flatsedge
      Cyperus dentatus - toothed flatsedge
      Cyperus diandrus - umbrella flatsedge
      Cyperus erythrorhizos - red-root flatsedge
      Cyperus esculentus var. leptostachyus - nut flatsedge
      Cyperus filicinus - fern flatsedge
      Cyperus houghtonii - Houghton’s flatsedge
      Cyperus lupulinus - Great Plains flatsedge
      Cyperus polystachyos - many-spiked flatsedge
      Cyperus squarrosus - awned flatsedge
      Cyperus strigosus - straw-colored flatsedge
   Dulichium (1 species)
      Dulichium arundinaceum - three-way sedge
   Eleocharis (19 species)
      Eleocharis acicularis - needle spikesedge
      Eleocharis aestuum - tidal spikesedge
      Eleocharis diandra - Wright–s spikesedge
      Eleocharis elliptica var. elliptica - elliptic spikesedge
      Eleocharis engelmannii - Engelmann’s spikesedge
      Eleocharis erythropoda - red-footed spikesedge
      Eleocharis flavescens olivacea - yellow spikesedge
      Eleocharis intermedia - mudflat spikesedge
      Eleocharis nitida - quill spikesedge
      Eleocharis obtusa - blunt spikesedge
      Eleocharis ovata - ovoid spikesedge
      Eleocharis palustris - common spikesedge
      Eleocharis parvula - little-headed spikesedge
      Eleocharis quinqueflora ssp. fernaldii - few-flowered spikesedge
      Eleocharis robbinsii - Robbins’ spikesedge
      Eleocharis rostellata - beaked spikesedge
      Eleocharis tenuis - slender spikesedge
      Eleocharis tuberculosa - long-tubercled spikesedge
      Eleocharis uniglumis - one-glumed spikesedge
   Eriophorum (6 species)
      Eriophorum angustifolium ssp. angustifolium - tall cottonsedge
      Eriophorum gracilum - tall cottonsedge
      Eriophorum tenellum - few-nerved cottonsedge
      Eriophorum vaginatum ssp. spissum - tussock cottonsedge
      Eriophorum virginicum - tawny cottonsedge
      Eriophorum viridicarinatum - tawny cottonsedge
   Fimbristylis (1 species)
      Fimbristylis autumnalis - slender fimbry
   Lipocarpha (1 species)
      Lipocarphamicrantha - small-flowered dwarf-bulrush
   Rhynchospora (5 species)
      Rhynchospora alba - white beaksedge
      Rhynchospora capillacea - brownish beaksedge
      Rhynchospora capitellata - brownish beaksedge
      Rhynchospora fusca - brown beaksedge
      Rhynchospora macrostachya - tall beaksedge
   Schoenoplectus (7 species and 1 hybrid)
      Schoenoplectus acutus var. acutus - hard-stemmed bulrush
      Schoenoplectus pungens var. pungens - three-square bulrush
      Schoenoplectus purshianus - weak-stalked bulrush
      Schoenoplectus smithii - Smith’s bulrush
      Schoenoplectus subterminalis - water bulrush
      Schoenoplectus tabernaemontani - soft-stemmed bulrush
      Schoenoplectus torreyi - Torrey’s bulrush
   Scirpus (10 species)
      Scirpus atrocinctus - black-girdled woolsedge
      Scirpus atrovirens - dark green woolsedge
      Scirpus cyperinus - common woolsedge
      Scirpus expansus - wood bulrush
      Scirpus georgianus - common woolsedge
      Scirpus hattorianus - mosquito woolsedge
      Scirpus longii - Long’s woolsedge
      Scirpus microcarpus - barber-pole woolsedge
      Scirpus pedicellats - stalked woolsedge
      Scirpus pendulus - stalked woolsedge
   Trichophorum (4 species)
      Trichophorum alpinum - alpine clubsedge
      Trichophorum cespitosum ssp. caespitosum - tufted clubsedge
      Trichophorum clintonii - Clinton’s clubsedge
      Trichophorum planifolium - bashful clubsedge




red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
Bolboschoenus
Bulbostylis capillaris
Carex
Cladium mariscoides
Cyperus
Dulichium arundinaceum
Eleocharis
Eriophorum
Fimbristylis autumnalis
Lipocarpha micrantha
Rhynchospora
Schoenoplectus
Scirpus
Trichophorum


Bolboschoenus (tuber-bulrush)
[information to be added]

red font = character state unique or nearly so inflorescence char. 2 char. 3 char. 4 char. 5 char. 6
B. fluviatilis with elongate branches
B. maritimus congested
Bolboschoenus novae-angliae with elongate branches
Bolboschoenus robustus congested

   Bolboschoenus fluviatilis (river tuber-bulrush) - [information to be added]

   Bolboschoenus maritimus (saltmarsh tuber-bulrush) - [information to be added]
      
      (click on image to enlarge)

   Bolboschoenus novae-angliae (New England tuber-bulrush) - [information to be added]

   Bolboschoenus robustus (sea-coast tuber-bulrush) - [information to be added]


Bulbostylis (hair-sedge)
[information to be added]

   Bulbostylis capillaris (tufted hair-sedge) - [information to be added]


Carex (sedge)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
Section Acrocystis
Section Albae
Section Ammoglochin
Section Anomalae
Section Bicolores
Section Carex
Section Careyanae
Section Ceratocystis
Section Chordorrhizae
Section Chlorostachyae
Section Clandestinae
Section Cyperoideae
Section Deweyanae
Section Dispermae
Section Divisae
Section Glareosae
Section Granulares
Section Griseae
Section Heleoglochin
Section Hirtifoliae
Section Hymenochlaenae
Section Laxiflorae
Section Leptocephalae
Section Leucoglochin
Section Limosae
Section Lupulinae
Section Mitratae
Section Multiflorae
Section Paludosae
Section Paniceae
Section Phacocystis
Section Phaestoglochin
Section Phyllostachyae
Section Physoglochin
Section Porocystis
Section Racemosae
Section Rostrales
Section Scirpinae
Section Squarrosae
Section Stellulatae
Section Vesicariae
Section Vulpinae


Section Acrocystis - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. albicans
C. communis var. communis
C. deflexa var. deflexa
C. lucorum ssp. lucorum
C. novae-angliae
C. peckii
C. pensylvanica
C. reznicekii
C. tonsa
C. umbellata

   Carex albicans (white-tinged sedge) - [information to be added]

   Carex communis var. communis (fibrous-rooted sedge) - [information to be added]

   Carex deflexa var. deflexa (northern sedge) - [information to be added]

   Carex lucorum (Blue Ridge sedge) - [information to be added]
      
      (click on image to enlarge)

   Carex novae-angliae (New England sedge) - [information to be added]

   Carex peckii (Peck’s sedge) - [information to be added]

   Carex pensylvanica (Pennsylvania sedge) - [information to be added]

   Carex reznicekii (Reznicek’s sedge) - [information to be added]

   Carex tonsa (shaved sedge) - [information to be added]

   Carex umbellata (parasol sedge) - [information to be added]


Section Albae - [information to be added]

   Carex eburnea (bristle-leaved sedge) - [information to be added]


Section Ammoglochin - [information to be added]

   Carex siccata (dry land sedge) - [information to be added]


Section Ammoglochin - [information to be added]

   Carex scabrata (eastern rough sedge) - [information to be added]


Section Bicolores - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. aurea
C. garberi

   Carex aurea (golden-fruited sedge) - [information to be added]

   Carex garberi (elk sedge) - [information to be added]


Section Carex - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. atherodes
C. hirta

   Carex atherodes (wheat sedge) - [information to be added]

   Carex hirta (hammer sedge) - [information to be added]


Section Careyanae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. digitalis var. digitalis
C. laxiculmis var. laxiculmis
C. plantaginea
C. platyphylla

   Carex digitalis var. digitalis (slender woodland sedge) - [information to be added]

   Carex laxiculmis var. laxiculmis (spreading sedge) - [information to be added]

   Carex plantaginea (plantain-leaved sedge) - [information to be added]

   Carex platyphylla (broad-leaved sedge) - [information to be added]


Section Ceratocystis - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. cryptolepis
C. flava
C. viridula

Carex cryptolepis (northeastern sedge) - [information to be added]

Carex lava (yellow-green sedge) - [information to be added]

Carex viridula (little green sedge) - [information to be added]


Section Chordorrhizae - [information to be added]

   Carex chordorrhiza (rope-root sedge) - [information to be added]


Section Chlorostachyae - [information to be added]

   Carex capillaris (hair-like sedge) - [information to be added]


Section Clandestinae - [information to be added]

   Carex pedunculata (long-stalked sedge) - [information to be added]


Section Cyperoideae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. adusta
C. argyrantha
C. bebbii
C. bicknellii
C. brevior
C. crawfordii
C. cumulata
C. festucacea
C. foenea
C. hormathodes
C. longii
C. merritt-fernaldii
C. normalis
C. oronensis
C. ovalis
C. praticola
C. projecta
C. scoparia
C. silicea
C. sychnocephala
C. tenera
C. tincta
C. tribuloides var. tribuloides

   Carex adusta (swarthy sedge) - [information to be added]

   Carex argyrantha (silvery-flowered sedge) - [information to be added]

   Carex bebbii (Bebb’s sedge) - [information to be added]

   Carex bicknellii (Bicknell’s sedge) - [information to be added]

   Carex brevior (short-beaked sedge) - [information to be added]

   Carex crawfordii (Crawford’s sedge) - [information to be added]

   Carex cumulata (clustered sedge) - [information to be added]

   Carex festucaceae (fescue sedge) - [information to be added]

   Carex foenea (straw sedge) - [information to be added]

   Carex hormathodes (marsh straw sedge) - [information to be added]

   Carex longii (Long’s sedge) - [information to be added]

   Carex merritt-fernaldii (Merritt Fernald’s sedge) - [information to be added]

   Carex normalis (greater straw sedge) - [information to be added]

   Carex oronensis (Orono sedge) - [information to be added]

   Carex ovalis (oval sedge) - [information to be added]

   Carex praticola (northern meadow sedge) - [information to be added]

   Carex projecta (necklace sedge) - [information to be added]

   Carex scoria (pointed broom sedge) - [information to be added]

   Carex silica (sea beach sedge) - [information to be added]

   Carex sychnocephala (many-headed sedge) - [information to be added]

   Carex tenera (delicate quill sedge) - [information to be added]

   Carex tincta (tinged sedge) - [information to be added]

   Carex tribuloides var. tribuloides (blunt broom sedge) - [information to be added]


Section Deweyanae - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. bromoides
C. deweyana var. deweyana

   Carex bromoides (brome-like sedge) - [information to be added]

   Carex deweyana (round-fruited short-scaled sedge) - [information to be added]


Section Dispermae - [information to be added]

   Carex disperma (soft-leaved sedge) - [information to be added]


Section Divisae - [information to be added]

   Carex praegracilis (freeway sedge) - [information to be added]


Section Glareosae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. arcta
C. billingsii
C. brunnescens
C. canescens
C. mackenziei
C. tenuiflora
C. trisperma

   Carex arcta (northern cluster sedge) - [information to be added]

   Carex billingsii (Billings’ sedge) - [information to be added]

   Carex brunnescens (brownish sedge) - [information to be added]

   Carex canescens (hoary sedge) - [information to be added]

   Carex mackenziei (Mackenzie’s sedge) - [information to be added]

   Carex tenuiflora (sprase-flowered sedge) - [information to be added]

   Carex trisperma (three-seeded sedge) - [information to be added]


Section Granulares - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. crawei
C. granularis

   Carex crawei (Crawe’s sedge) - [information to be added]

   Carex granularis (limestone-meadow sedge) - [information to be added]


Section Griseae - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. conoidea
C. grisea

   Carex conoidea (oopen-field sedge) - [information to be added]

   Carex grisea (inflated narrow-leaved sedge) - [information to be added]


Section Heleoglochin - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. diandra
C. prairea

   Carex diandra (lesser tussock sedge) - [information to be added]

   Carex prairea (prairie sedge) - [information to be added]


Section Hirtifoliae - [information to be added]

   Carex hirtifolia (pubescent sedge) - [information to be added]


Section Hymenochlaenae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. arctata
C. castanea
C. debilis
C. gracillima
C. prasina
C. sprengelii

   Carex arctata (drooping woodland sedge) - [information to be added]

   Carex castanea (chestnut sedge) - [information to be added]

   Carex debilis (white-edged sedge) - [information to be added]

   Carex gracillima (graceful sedge) - [information to be added]

   Carex prasina (drooping sedge) - [information to be added]

   Carex sprengelii (long-beaked sedge) - [information to be added]


Section Hymenochlaenae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. blanda
C. laxiflora
C. leptonervia
C. ormostachya

   Carex blanda (eastern woodland sedge) - [information to be added]

   Carex laxiflora (broad loose-flowered sedge) - [information to be added]

   Carex leptonervia (nerveless woodland sedge) - [information to be added]

   Carex ormostachya (necklace spike sedge) - [information to be added]


Section Leptocephalae - [information to be added]

   Carex leptalea ssp. leptalea (bristle-stalk sedge) - [information to be added]


Section Leucoglochin - [information to be added]

   Carex pauciflora (few-flowered sedge) - [information to be added]


Section Limosae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. limosa
C. magellanica ssp. irrigua
C. rariflora

   Carex limosa (mud sedge) - [information to be added]

   Carex magellanica ssp. irrigua (boreal bog sedge) - [information to be added]

   Carex rariflora (loose-flowered alpine sedge) - [information to be added]


Section Lupulinae - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. intumescens
C. lupulina

   Carex intumescens (greater bladder sedge) - [information to be added]

   Carex lupulina (hop sedge) - [information to be added]


Section Mitratae - [information to be added]

   Carex caryophyllea (vernal sedge) - [information to be added]


Section Multiflorae - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. annectens
C. vulpinoidea

   Carex annectens (yellow-fruited sedge) - [information to be added]

   Carex vulpinoidea (common fox sedge) - [information to be added]


Section Paludosae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. houghtoniana
C. lacustris
C. lasiocarpa ssp. americana
C. pellita ssp. americana
C. vestita

   Carex houghtoniana (Houghton’s sedge) - [information to be added]

   Carex lacustris (lake-side sedge) - [information to be added]

   Carex lasiocarpa ssp. americana (woolly-fruited sedge) - [information to be added]

   Carex pellita (woolly sedge) - [information to be added]

   Carex vestita (velvet sedge) - [information to be added]


Section Paniceae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. livida
C. panicea
C. polymorpha ssp. americana
C. vaginata ssp. americana

   Carex livida (livid sedge) - [information to be added]

   Carex panicea (grass-like sedge) - [information to be added]

   Carex polymorpha (variable sedge) - [information to be added]

   Carex vaginata (sheathed sedge) - [information to be added]


Section Phacocystis - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. aquatilis ssp. altior
C. bigelowii
C. crinita
C. gynandra
C. haydenii
C. lenticularis
C. nigra
C. paleacea
C. recta
C. stricta
C. torta
C. vacillans

   Carex aquatilis ssp. altior (water sedge) - [information to be added]

   Carex bigelowii ssp. bigelowii (Bigelow’s sedge) - [information to be added]

   Carex crinita (fringed sedge) - [information to be added]

   Carex gynandra (nodding sedge) - [information to be added]

   Carex haydenii (Hayden’s sedge) - [information to be added]

   Carex lenticularis (lake shore sedge) - [information to be added]

   Carex nigra (smooth black sedge) - [information to be added]

   Carex paleacea (chaffy sedge) - [information to be added]

   Carex recta (estuary sedge) - [information to be added]

   Carex stricta (tussock sedge) - [information to be added]

   Carex torta (twisted sedge) - [information to be added]

   Carex vacillans (swinging sedge) - [information to be added]


Section Phaestoglochin - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. appalachica ssp. altior
C. cephaloidea
C. cephalophora
C. muehlenbergii
C. radiata
C. rosea
C. sparganioides
C. spicata

   Carex appalachica (Appalachian sedge) - [information to be added]

   Carex cephaloidea (thin-leaved sedge) - [information to be added]

   Carex cephalophora (oval-headed sedge) - [information to be added]

   Carex muehlenbergii (Muhlenberg’s sedge) - [information to be added]

   Carex radiata (eastern star sedge) - [information to be added]

   Carex rosea (rosy sedge) - [information to be added]

   Carex sparganioides (bur-reed sedge) - [information to be added]

   Carex spicata (prickly sedge) - [information to be added]


Section Phaestoglochin - [information to be added]

   Carex backii (Back’s sedge) - [information to be added]


Section Physoglochin - [information to be added]

   Carex gynocrates (northern bog sedge) - [information to be added]


Section Porocystis - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. bushii ssp. altior
C. hirsutella
C. pallescens
C. swanii
C. virescens

   Carex bushii (Bush’s sedge) - [information to be added]

   Carex hirsutella (hirsute sedge) - [information to be added]

   Carex pallescens (pale sedge) - [information to be added]

   Carex swanii (Swan᾿s sedge) - [information to be added]

   Carex virescens (ribbed sedge) - [information to be added]


Section Racemosae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. atratiformis ssp. altior
C. buxbaumii
C. media

   Carex atratiformis (scabrous black sedge) - [information to be added]

   Carex buxbaumii (brown box sedge) - [information to be added]

   Carex media (closed-headed sedge) - [information to be added]


Section Rostrales - [information to be added]

char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. folliculata ssp. altior
C. michauxiana

   Carex follicular (northern long sedge) - [information to be added]

   Carex michauxiana (Michaux’s sedge) - [information to be added]


Section Scirpinae - [information to be added]

   Carex scirpoidea (Canadian single-spike sedge) - [information to be added]


Section Squarrosae - [information to be added]

   Carex typhina (cattail sedge) - [information to be added]


Section Racemosae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. atlantica
C. echinata var. echinata
C. exilis
C. interior
C. sterilis
C. wiegandii

   Carex atlantica (prickly bog sedge) - [information to be added]

   Carex echinata var. echinata (star sedge) - [information to be added]

   Carex exilis (meager sedge) - [information to be added]

   Carex interior (inland sedge) - [information to be added]

   Carex sterilis (dioecious sedge) - [information to be added]

   Carex wiegandii (Wiegand’s sedge) - [information to be added]


Section Vesicariae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. baileyi
C. bullata var. echinata
C. comosa
C. hystericina
C. lurida
C. oligosperma
C. pseudocyparis
C. retrorsa
C. rostrata
C. saxatilis
C. tuckermanii
C. utriculata
C. vesicaria

   Carex baileyi (Bailey’s sedge) - [information to be added]

   Carex bullata (button sedge) - [information to be added]

   Carex comosa (bearded sedge) - [information to be added]

   Carex hystericina (porcupine sedge) - [information to be added]

   Carex lurida (sallow sedge) - [information to be added]

   Carex oligosperma (few-seeded sedge) - [information to be added]

   Carex pseudocyperus (cypress-like sedge) - [information to be added]

   Carex retrorsa (retrorse sedge) - [information to be added]

   Carex rostrata (beaked sedge) - [information to be added]

   Carex saxatilis (russet sedge) - [information to be added]

   Carex tuckermanii (Tuckerman’s sedge) - [information to be added]

   Carex utriculata (swollen-beaked sedge) - [information to be added]

   Carex vesicaria (lesser bladder sedge) - [information to be added]


Section Vulpinae - [information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. alopecoidea
C. oklahomensis
C. stipata var. stipata

   Carex alopecoidea (fox-tail sedge) - [information to be added]

   Carex oklahomensis (Oklahoma sedge) - [information to be added]

   Carex stipata var. stipata (awl-fruited sedge) - [information to be added]


Cladium (saw-sedge)
[information to be added]

   Cladium mariscoides (smooth saw-sedge) - [information to be added]


Cyperus (spikesedge)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
C. bipartitis
C. dentatus
C. diandrus var. stipata
C. erythrorhizos
C. esculentus var. leptostachyus
C. filicinus
C. houghtonii
C. lupulinus
C. polystachyos
C. squarrosus
C. strigosus

   Cyperus bipartitus (shining flatsedge) - [information to be added]

   Cyperus dentatus (toothed flatsedge) - [information to be added]

   Cyperus diandrus (umbrella flatsedge) - [information to be added]

   Cyperus erythrorhizos (red-root flatsedge) - [information to be added]

   Cyperus esculentus var. leptostachyus (nut flatsedge) - [information to be added]

   Cyperus filicinus (fern flatsedge) - [information to be added]

   Cyperus houghtonii (Houghton’s flatsedge) - [information to be added]

   Cyperus lupulinus (Great Plains flatsedge) - [information to be added]

   Cyperus polystachyos (many-spiked flatsedge) - [information to be added]

   Cyperus squarrosus (aened flatsedge) - [information to be added]

   Cyperus strigosus (straw-colored flatsedge) - [information to be added]


Dulichium (sedge)
[information to be added]

   Dulichium arundinaceum (three-way sedge) - [information to be added]
         
      (click on an image to enlarge)


Eleocharis (spikesedge)
[information to be added]

red font = character state unique or nearly so char. 1 char. 2 char. 3 char. 4 char. 5 char. 6
E. acicularis
E. aestuum
E. diandra var. stipata
E. elliptica var. elliptica
E. engelmannii
E. erythropoda
E. flavescens var. olivacea
E. intermedia
E. nitida
E. obtusa
E. ovata
E. palustris
E. parvula
E. quinqueflora ssp. fernaldii
E. robinsii
E. rostellata
E. tenuis
E. tuberculosa
E. uniglumis

   Eleocharis acicularis (needle spikesedge) - [information to be added]

   Eleocharis aestuum (tidal spikesedge) - [information to be added]

   Eleocharis diandra (Wright’s spikesedge) - [information to be added]

   Eleocharis elliptica var. elliptica (elliptic spikesedge) - [information to be added]

   Eleocharis engelmannii (Engelmann’s spikesedge) - [information to be added]

   Eleocharis erythropoda (red-footed spikesedge) - [information to be added]

   Eleocharis flavescens var. olivacea (yellow spikesedge) - [information to be added]

   Eleocharis intermedia (mudflat spikesedge) - [information to be added]

   Eleocharis nitida (quill spikesedge) - [information to be added]

   Eleocharis obtusa (blunt spikesedge) - [information to be added]

   Eleocharis ovata (ovoid spikesedge) - [information to be added]

   Eleocharis palustris (common spikesedge) - [information to be added]

   Eleocharis parvula (little-headed spikesedge) - [information to be added]

   Eleocharis quinqueflora (few-flowered spikesedge) - [information to be added]

   Eleocharis robbinsii (Robbin’s spikesedge) - [information to be added]

   Eleocharis rostellata (beaked spikesedge) - [information to be added]

   Eleocharis tenuis (slender spikesedge) - [information to be added]

   Eleocharis tuberculosa (long-tubercled spikesedge) - [information to be added]

   Eleocharis uniglumis (one-glumed spikesedge) - [information to be added]


Eriophorum (cottonsedge)
[information to be added]

red font = character state unique or nearly so plant height leaves spikelet number perianth bristles achene length
E. angustifolium to 1 m flat, at least basally;
2–8 mm wide
3–several white 2–3 mm
E. gracile
E. tenellum 0.3–0.8 m more or less flat;
1–2 mm wide;
channeled
3–6 dingy white [?]
E. vaginatum 0.1–0.6 m filiform;
approximately 1 mm wide
solitary bright white 2.5–3.5 mm
E. virginicum 0.4–1.2 m flat;
2–4 mm wide
several tawny 3–3.5 mm
E. viridicarinatum


   Eriophorum angustifolium ssp. angustifolium (tall cottonsedge) - [information to be added]

   Eriophorum gracile (slender cottonsedge) - [information to be added]

   Eriophorum tenellum (few-nerved cottonsedge) - [information to be added]

   Eriophorum vaginatum var. spissum (tussock cottonsedge) - [information to be added]

   Eriophorum virginicum (tawny cottonsedge) - [information to be added]
      
      (click on image to enlarge)

   Eriophorum viridicarinatum (green-keeled cottonsedge) - [information to be added]


Fimbristylis (fimbry)
[information to be added]

   Fimbrystilis autumnalis (slender fimbry) - [information to be added]


Lipocarpha (dwarf-bulrush)
[information to be added]

   Lipocarpha micrantha (small-flowered dwarf-bulrush) - [information to be added]


Rhynchospora (beaksedge)
[information to be added]

red font = character state unique or nearly so
R. alba
R. capillacea
R. capitellata
R. fusca
R. macrostachya

   Rhynchospora alba (white beaksedge) - [information to be added]

   Rhynchospora capillacea (needle beaksedge) - [information to be added]

   Rhynchospora capitellata (brownish beaksedge) - [information to be added]

   Rhynchospora fusca (brown beaksedge) - [information to be added]

   Rhynchospora macrostachya (tall beaksedge) - [information to be added]


Schoenoplectus (bulrush)
[information to be added]

red font = character state unique or nearly so
S. acutus var. acutus
S. pungens var. pungens
S. purshianus
S. smithii
S. subterminalis
S. tabernaemontani
S. torreyi

   Schoenoplectus acutus var. acutus (hard-stemmed bulrush) - [information to be added]
         
      (click on an image to enlarge)

   Schoenoplectus pungens var. punbens (three-square bulrush) - [information to be added]

   Schoenoplectus purshianus (weak-stalked bulrush) - [information to be added]

   Schoenoplectus smithii (Smith’s bulrush) - [information to be added]

   Schoenoplectus subterminalis (water bulrush) - [information to be added]

   Schoenoplectus tabernaemontani (soft-stemmed bulrush) - [information to be added]

   Schoenoplectus torreyi (Torrey’s bulrush) - [information to be added]


Scirpus (woolsedge)
[information to be added]

red font = character state unique or nearly so
S. atrocinctus
S. atrovirens
S. cyperinus
S. expansus
S. georgianus
S. hattorianus
S. longii
S. microcarpus
S. pedicellatus
S. pendulus

   Scirpus atrocinctus (black-girdled woolsedge) - [information to be added]

   Scirpus atrovirens (dark green bulrush) - [information to be added]

   Scirpus cyperinus (common woolsedge) - [information to be added]

   Scirpus expansus (wood bulrush) - [information to be added]

   Scirpus georgianus (Georgia bulrush) - [information to be added]

   Scirpus hattorianus (mosquito bulrush) - [information to be added]

   Scirpus longii (Long’s woolsedge) - [information to be added]

   Scirpus microcarpus (barber-pole bulrush) - [information to be added]

   Scirpus pedicellatus (stalked woolsedge) - [information to be added]

   Scirpus pendulus (rufous bulrush) - [information to be added]


Trichophorum (clubsedge)
[information to be added]

red font = character state unique or nearly so
T. alpinum
T. cespitosum ssp. cespitosum
T. clintonii
T. planifolium

   Trichophorum alpinum (alpine clubsedge) - [information to be added]

   Trichophorum cespitosum ssp. cespitosum (tufted clubsedge) - [information to be added]

   Trichophorum clintonii (Clinton’s clubsedge) - [information to be added]

   Trichophorum planifolium (bashful clubsedge) - [information to be added]


Note:
   1. Taxonomy and nomenclature follow Flora Novae Angliae by Arthur Haines (2011, Yale University Press, ISBN 978-0-300-17154-9).