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Setaria parviflora (Poir.) Kerguelen
Family Poaceae
Setaria parviflora (Poir.) Kerguelen APNI*

Synonyms: Setaria gracilis Kunth APNI*
Setaria geniculata (Lam.) P.Beauv. APNI*

Description: Tufted perennials with erect, spreading or ascending culms to c. 1.2 m tall.

Culms smooth except below inflorescence, glabrous. Sheaths compressed, sometimes scabrous upwards, glabrous; ligule densely ciliate, c. 1 mm long; blade flat, usually straight, acuminate, to 25 cm long and 8 mm wide, scabrous, often glaucous, lower surface glabrous.

Inflorescence long-exserted, erect, cylindrical, dense, mostly 1–10 cm long, branches very short, bristles 1–6 times longer than spikelets. Spikelets ovoid, ovate-elliptic, 2–2.8(–3) mm long, each on a short branch subtended by short branchlets divided into 4–12 bristles 2–12 mm long. Lower glume 30–40% spikelet length, broad ovate to triangular, subacute; upper 50–65% spikelet length, obtuse to subacute. Lower lemma staminate or sterile, as long as the spikelet, acute or apiculate; palea as long as lemma, broad, hyaline. Upper lemma bisexual, subequal to spikelet, finely transversely rugose; palea similar to lemma.

Photo L. von Richter

Distribution and occurrence: Native to America.

Roadsides and other disturbed areas.
NSW subdivisions: *NC, *CC, *SC, *NT, *CT, *NWS, *ST, *CWS, *SWS, *SWP, *LHI
AVH map***

Text by Jacobs, S.W.L., Whalley, R.D.B. & Wheeler, D.J.B.
Taxon concept: Grasses of New South Wales, Fourth Edition (2008).

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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