Common name: Marsh Foxtail, Knee-jointed Foxtail, Floating Foxtail
Alopecurus geniculatus L. APNI* Synonyms: Alopecurus australis Nees APNI*
Description: Tufted perennial to 0.6 m high, culms erect or geniculate, commonly rooting at nodes.
Leaves with sheath scarcely inflated; ligule obtuse, often lacerated, 3–5 mm long, minutely scabrous; blade (1-) 2–8 mm wide, minutely scabrous.
Panicle dense, narrow-cylindrical, occasionally bent or curved, 1.5–12 cm long, 3–6 (-7) mm wide. Spikelets 2–3.5 mm long. Glumes obtuse to mucronate, almost free, 2–3 (-3.5) mm long, ciliate along the keel, and the sides with scattered hairs. Lemma truncate, 2–3 mm long; awn (3-) 4–8 mm long, inserted below the middle of the lemma.
Flowering: mainly spring.
Distribution and occurrence: Grows in damp or wet areas. Native of Eur., Asia, N Amer.
NSW subdivisions: *ST, *NWS, *CWS, *SWS, *NWP, *SWP, *NFWP, *SFWP
Other Australian states: *Qld *Vic. *Tas. *W.A. *S.A.
Known to hybridise with Alopecurus aequalis.
Text by S. W. L. Jacobs & S. M. Hastings; revised by P.G. Kodela (August 2012)
Taxon concept: Flora of NSW 4 (1993)
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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