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Electronic Flora of South Australia species Fact Sheet

Family: Cyperaceae
Cyperus exaltatus

Citation: Retz., Obs. Bot. 5:11 (1789).

Synonymy: Cyperus exaltatus

Common name: Tall flat-sedge, giant sedge.

Description:
Stout tufted perennial, to I m high; stems triquetrous, 2-3 mm thick at the top; leaves about as long as the stem, 3-10 mm wide; bracts 3-6, like the leaves; serrulate on the edges; the lower ones much exceeding the inflorescence (to 80 cm long).

Umbel compound, with several spreading rays; spikelets rather densely arranged in oblong or linear spikes at the end of the rays and their branches a rich deep-brown to golden-brown, mostly linear, 20-40-flowered, to 15 mm long, 1-1.5 mm wide; rhachilla winged; glumes tightly packed, mucronate, keeled, 3-5-nerved on the back and nerveless on the sides, c. 1.5 mm long; style 3-fid.

Nut ellipsoid to ovoid or obovoid, acute, cuneate, c. 0.7 x c. 0.4 mm, trigonous, sides flat or slightly convex, straw-coloured, slightly shiny or dull, with a transparent very faint reticulate-papillose layer, about half the length of the glume.

Published illustration: Cunningham et al. (1982) Plants of western New South Wales, p. 160.

Distribution:  Grows in wet places.

S.Aust.: NW, LE, FR, MU, SL.   All mainland States.   Africa; Asia and South America.

Conservation status: native

Flowering time: Jan. — May, July and Sept.


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


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