Cyperaceae
Carex tonsa (Fernald) E.P.Bicknell
Carex tonsa (Fernald) E.P.Bicknell
Carex tonsa, or shaved sedge, is a flowering sedge species native to Canada and the Eastern United States.
Carex torta Boott ex Tuck.
Carex torta Boott ex Tuck.
Carex torta (twisted sedge) is a Cyperaceae flowering plant native to central-eastern North America, specialized for recently scoured gravelly rocky river and stream banks.
Carex tribuloides Wahlenb.
Carex tribuloides Wahlenb.
Carex tribuloides (blunt broom sedge) is a flowering Carex species native to eastern North America and Veracruz, Mexico, introduced to Sweden, and important spring migration food for soras.
Carex trichocarpa Muhl. ex Willd.
Carex trichocarpa Muhl. ex Willd.
Carex trichocarpa, the hairy-fruited sedge, is a North American Carex species of special concern in Connecticut, fed on by endangered two-spotted skipper larvae.
Carex trisperma Dewey
Carex trisperma Dewey
Carex trisperma Dewey is a circumpolar perennial sedge that grows in wetlands of coniferous forests.
Carex tuckermanii Boott
Carex tuckermanii Boott
Carex tuckermanii Boott is a tussock-forming wetland sedge that grows up to 48 inches tall and produces achenes from late spring to summer.
Carex typhina Michx.
Carex typhina Michx.
Carex typhina Michx. is a sedge that grows 30–80cm tall, with reddish-brown stem bases and heads of multiple erect spikes.
Carex uncinata L.f.
Carex uncinata L.f.
Carex uncinata is a flowering sedge species native to New Zealand, the Society Islands, and Hawaii, growing up to 1000 m elevation.
Carex utriculata Boott
Carex utriculata Boott
Carex utriculata is a sedge native to northern North America, Europe, and Asia, commonly growing in many types of wetland habitat.
Carex vaginata Tausch
Carex vaginata Tausch
Carex vaginata Tausch is a circumboreal sedge named for the bract sheath on its stem below the inflorescence that grows in moist northern habitats.
Carex vesicaria L.
Carex vesicaria L.
Carex vesicaria, or bladder sedge, is a perennial circumpolar wetland sedge with a history of indigenous cultivation for crafts.
Carex virescens Muhl. ex Willd.
Carex virescens Muhl. ex Willd.
Ribbed sedge (Carex virescens) is a flowering sedge native to eastern North America that resembles Carex swanii.
Carex virgata Sol. ex Hook.f., 1853
Carex virgata Sol. ex Hook.f., 1853
Carex virgata (syn. Carex appressa) is a perennial tufted sedge that grows in wet habitats and feeds Heteronympha cordace larvae.
Carex vulpina L.
Carex vulpina L.
Carex vulpina L. is a clumping sedge found from Europe to Xinjiang, that favours lowland wetlands.
Carex vulpinoidea Michx.
Carex vulpinoidea Michx.
Carex vulpinoidea, or fox sedge, is a North American native sedge that grows in wet habitats and has been introduced to Europe and New Zealand.
Carex wiegandii Mack.
Carex wiegandii Mack.
Carex wiegandii Mack. is a species in the large flowering plant genus Carex, the sedges.
Carex woodii Dewey
Carex woodii Dewey
Carex woodii is an early-flowering rhizomatous sedge native to eastern and midwestern North American woodlands.
Caustis blakei Kük. ex S.T.Blake
Caustis blakei Kük. ex S.T.Blake
Caustis blakei is a slow-growing Australian sedge adapted to low-nutrient acidic sandy soils in eucalyptus forests.
Caustis flexuosa R.Br.
Caustis flexuosa R.Br.
Caustis flexuosa is an Australian sedge with curled foliage, found across poor granite or sandstone soils of eastern Australia.
Cladium mariscoides (Muhl.) Torr.
Cladium mariscoides (Muhl.) Torr.
Smooth sawgrass (Cladium mariscoides) is a perennial eastern North American wetland herb native to much of Canada and the US.
Cladium mariscus (L.) Pohl
Cladium mariscus (L.) Pohl
Cladium mariscus is a serrated-leaved flowering sedge native to temperate Eurasia, historically used for thatching roofs.
Cyperus albostriatus Schrad.
Cyperus albostriatus Schrad.
Cyperus albostriatus Schrad. is a sedge species native to the southern region of Africa.
Cyperus alternifolius L.
Cyperus alternifolius L.
Cyperus alternifolius is a popular grass-like ornamental sedge native to Africa, Madagascar, and the Arabian Peninsula.
Cyperus aquatilis R.Br.
Cyperus aquatilis R.Br.
Cyperus aquatilis is a small annual flowering sedge native to Australia and New Guinea.
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