About
Contact
Links
Electronic Flora of South Australia
Electronic Flora of South Australia
Census of SA Plants, Algae & Fungi
Identification tools
 

Electronic Flora of South Australia species Fact Sheet

Family: Cyperaceae
Cyperus eragrostis

Citation: Lam., Tabl. Encycl. 1:146 (1791).

Synonymy: C. vegetus Willd., Sp. Pl. 1:283 (1797), nom. illegit.

Common name: Drain flat-sedge, umbrella sedge. (Cunningham et al. (1982) Plants of western New South Wales, p. 159.)

Description:
Tufted perennial, 20-100 cm high; leaves 3-4 mm broad, flat, with recurved margins.

Spikelets very numerous in each compact subglobose cluster (100's per culm), oblong, flat, 2.5-3 mm wide, pale; rhachilla not winged; glumes falling away from the base of the spikelet, acute, keeled, green-yellow or pale-brown, nearly nerveless or with 1 prominent median nerve on each side, 2-2.5 mm long; style 3-branched.

Nut obovoid-cuneate, 0.8-0.9 x c. 0.6 mm, almost equally 3-angular, sides concave, olive-green-brown, with a transparent very faint reticulate-papillose layer, acute at the base of the style, about half of the length of the glumes.

Distribution:  S.Aust.: GT, FR, NL, MU, YP, SL, KI, SE.   All mainland States except the N.T.   Native to South America.

Conservation status: naturalised

Flowering time: Dec. — July.


SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia

Biology: No text

Author: Not yet available


Disclaimer Copyright Disclaimer Copyright Email Contact:
State Herbarium of South Australia
Government of South Australia Government of South Australia Government of South Australia Department for Environment and Water