Electronic Flora of South Australia
Electronic Flora of South Australia
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Electronic Flora of South Australia species Fact Sheet

Family: Cyperaceae
Schoenoplectus validus

Citation: Á. Löve & D. Löve, Bull. Torrey Bot. Club 81:33 (1954).

Synonymy: Not Applicable

Common name: River club-rush.

Rhizome creeping; stems cylindrical, stout, tall and to 2 m or more high; leaves almost reduced to the sheathing bases, rarely the uppermost sheath with a short lamina; bract solitary, erect, shorter or longer than the inflorescence, rigid, concavo-convex.

Inflorescence umbel-like, 2-7 cm long and about the same breadth, loose, the rays simple or divided, the lower ones usually spreading or decurved; spikelets several, ovoid or oblong-ovoid, brown, 5-10 mm long; glumes numerous, keeled, mucronate, more or less notched, more or less ciliate on the margins; hypogynous bristles 5 or 6, slender, about as long as the nut; stamens 3; style branches 2.

Nut ovoid, acute, cuneate, 2-2.3 x c. 1.3 mm, plano-convex, dark-brown, shiny, more than half as long as the glume.

Distribution:    All States except the N.T.   Cosmopolitan.

Conservation status: native

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

Taxonomic notes: The Australian plants have been attributed to subsp. validus (Vahl) Koyama (1962) Canad. J. Bot. 40:927. There is a strong superficial similarity with S. litoralis which lacks the distinct ciliation of the glumes and has broad hypogynous scales.

Author: Not yet available

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