Citation: Vahl, Enum. Pl. 2:351 (1805/6).

Synonymy: C. eragrostis sensu Vahl, Enum. Pl. 2:322 (1805/6), non Lam.

Common name: Flat-sedge.

Description:
Annual, to 40 cm high, sometimes dwarfed to 2-3 cm high; stems solitary or tufted, ascending to erect, almost setaceous in small plants, coarser in others, triquetrous, striate, smooth; leaves grass-like, variable, to 3 mm wide, shorter than the stems; bracts 3 or 4, spreading, at least the lower longer to much longer than the inflorescence.

Inflorescence capitate or umbellate, the rays few, short, to 4 cm long; spikelets clustered, mostly dark, oblong or oblong-lanceolate, 5-14 mm long, 1.5-2 mm wide, 8-20-flowered, strongly flattened; rhachilla not winged; glumes rather loose, with a broad green keel, the sides with a dark-red blotch and almost nerveless, c. 2 mm long; style branches 2.

Nut orbicular-obovoid, apiculate, abruptly cuneate to a narrow base and appearing shortly stipitate, c. 1.2 x 0.7 mm, laterally biconvex with an edge near the rhachilla, straw-coloured to brown or nearly blackish, with a very faint shiny transparent reticulate-papillose layer, rather less than half the length of the glume.

Distribution:  Grows in wet places. S.Aust.: FR, MU, SL.   Native in all mainland States except W.Aust. and the N.T.   Africa and Asia. Conservation status: naturalised Flowering time: Nov. — April.

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