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Electronic Flora of South Australia species Fact Sheet

Family: Poaceae
Polypogon viridis

Citation: Breistr., Bull. Soc. Bot. Fr. 110:56 (1966). Water bent.

Synonymy: Agrostis viridis Gouan, Hort. reg. Monspel. 546 (1762); Phalaris semiverticillata Forsskål, Fl. Aegypt.-Arab. 17 (1775); A. semiverticillata (Forsskål)C. Chr., Dansk. Bot. Archiv. 4(3): 12 ( 1922); Polypogon semiverticillatus (Forsskål)N. Hylander, Uppsala Univ. Arsskr. 7:74 (1945); A. verticillata Villars, Prosp. 16 (1779).

Common name: None

Description:
Tufted or stoloniferous perennial, 10-100 cm high; leaves short, 3-10 mm broad, scabrous.

Panicle moderately dense, lobed, 4-10 cm long, the branches bearing spikelets to their bases; spikelets c. 2 mm long; glumes equal, falling with the spikelet, scabrous on the keel and shortly pubescent on the sides, awnless; lemma half as long, truncate, 4-nerved and with 4 minute teeth at the summit,

Published illustration: Meredith (1955) The grasses and pastures of South Africa, fig. 69.

Distribution:  Weed of disturbed areas.

S.Aust.: GT, FR, EA, EP, NL, MU, SL, KI, SE.   W.Aust.; N.S.W.; Vic..   Native from the Mediterranean to Asia.

Conservation status: naturalised

Flowering time: most of the year, especially Sept. — March.Fig. 878C.


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

Biology: Often treated as a species of Agrostis, but anomalous then as the spikelets and pedicels fall as a unit (as in Polypogon) and the spikelet does not disarticulate above the glumes (as in other species of Agrostis).

Author: Not yet available


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