Family: Cyperaceae
Eleocharis acuta
Citation:
R. Br., Prod. Fl. Nov. Holl. 224 (1810).
Synonymy: Eleocharis pallens, Heleocharis acuta Common name: Common spike-rush.
Description:
Rhizome slender, woody, bearing tufts of stems at intervals; stems to 90 cm high, usually 1-2 mm wide or sometimes slightly more; mouth of uppermost sheath dark-brown, somewhat thickened, truncate or nearly so, prominently mucronate.
Spikelet linear, more or less acute, usually darkbrown or variegated with brown, 15-30 mm long; glumes ovate-lanceolate, subobtuse to very acute at the triangular apex, 3.5-4 mm long, 1-nerved; stamens 3.
Nut broadly obovate, 1.5-1.8 x 1.1-1.3 mm, plano-convex to biconvex, often turgid, margins obtuse, sides smooth or somewhat rough, yellow to brown, shiny; style base ovate to triangular, laterally compressed, 0.4-0.8 x 0.5-0.7 mm, whitish or discoloured, cellular; hypogynous bristles usually 7, longer than the nut, strongly retrorsely toothed.
Published illustration:
Cunningham et al. (1982) Plants of western New South Wales, p. 164.
Distribution:
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Grows in wet places.
S.Aust.: GT, FR, EP, NL, MU, YP, SL, KI, SE. All States except the N.T. New Zealand.
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Conservation status:
native
Flowering time: mainly Sept. — April.
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SA Distribution Map based
on current data relating to
specimens held in the
State Herbarium of South Australia
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Biology:
No text
Author:
Not yet available
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