Cyperaceae

Purpleglume flatsedge

Cyperus sanguinolentus Vahl

Family: Cyperaceae
Genus: Cyperus

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Purpleglume flatsedge: Cyperus sanguinolentus — Photo: keisotyo, CC BY-SA 3.0, from Wikimedia Commons

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Common names

By language (3)

Chinese: 紅鱗扁莎, 红鳞扁莎, 矮红鳞扁莎, 红边扁莎, 黑扁莎, 槽鳞扁莎, 蓼螺
English: Purpleglume flatsedge
Japanese: カワラスガナ

Synonyms

Cyperus albidus Lam.
Cyperus areolatus R.Br.
Cyperus atratus Steud.
Cyperus concolor Steud.
Cyperus eragrostis Vahl
Cyperus eragrostis f. melanocephalus (Boeckeler) Valck.Sur.
Cyperus eragrostis var. cyrtostachys Miq.
Cyperus eragrostis var. flaccidulus Boeckeler
Cyperus eragrostis var. humilis Miq.
Cyperus eragrostis var. melanocephalus Boeckeler
Cyperus eragrostis var. micronux C.B.Clarke
Cyperus eragrostis var. microstachyus Boeckeler
Cyperus eragrostis var. minor Ewart
Cyperus eragrostis var. pauperita J.M.Black
Cyperus erythraeus Schrad.
Cyperus flavescens f. rubromarginatus (Schrenk) Regel
Cyperus flavescens var. rubromarginatus Schrenk ex Fisch. & C.A.Mey.
Cyperus korshinskii Meinsh.
Cyperus levis F.Muell. ex C.B.Clarke
Cyperus louisianensis Thieret
Cyperus melanocephalus Miq.
Cyperus nevrotropis Steud.
Cyperus pumilus Rottb.
Cyperus rehmannii Boiss.
Cyperus rubromarginatus (E.G.Camus) Drobow
Cyperus sanguinolentus f. cyrtostachys (Miq.) Kük.
Cyperus sanguinolentus f. flaccidulus (Boeckeler) Kük.
Cyperus sanguinolentus f. humilis (Miq.) Kük.
Cyperus sanguinolentus f. melanocephalus (Miq.) Kük.
Cyperus sanguinolentus f. neurotropis (Steud.) Kük.
Cyperus sanguinolentus f. rubromarginatus (Schrenk) Kük.
Cyperus sanguinolentus f. setaceus Kük.
Cyperus sanguinolentus subsp. cyrtostachys (Miq.) J.Kern
Cyperus sanguinolentus subsp. melanocephalus (Miq.) J.Kern
Cyperus sanguinolentus subsp. nairobiensis (Lye) Lye
Cyperus sanguinolentus subsp. sacer Korlahalli
Cyperus sanguinolentus subsp. teysmannii (Boeckeler) J.Kern
Cyperus sanguinolentus var. areolatus (R.Br.) Kük.
Cyperus sanguinolentus var. korshinskyi (Meinsh.) Kük.
Cyperus sanguinolentus var. micronux (C.B.Clarke) Kük.

and 20 more.

Characteristics

Growth habit: Graminoid
Lifespan: Annual, Perennial
In the US and Canada: Hawaii: introduced, Lower 48 states: introduced

Photos

Photo: keisotyo, CC BY-SA 3.0, from Wikimedia Commons
Photo: keisotyo, CC BY-SA 3.0, from Wikimedia Commons
Photo: John Tann from Sydney, Australia, CC BY 2.0, from Wikimedia Commons

More in Cyperus

Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.