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Hyparrhenia rufa subsp. altissima (Stapf) B.K.Simon
Family Poaceae
Hyparrhenia rufa subsp. altissima (Stapf) B.K.Simon APNI*

Description: Erect annual or perennial to c. 2 m high.

Leaves with sheath usually glabrous; ligule 3–4.5 mm long; blade 2–4 mm wide, glabrous.

Panicle 35–60 cm long. Spatheoles usually 5–6 mm long, at length reddish and rolled around the peduncles. Racemes paired, 2–5 cm long; bases hairy, unequal; 9–10 awns per raceme; the callus beards, internodes and pedicels usually white; a pair of sterile spikelets (similar to the pedicellate spikelets) at the base of the lower or both racemes. Sessile spikelets hairy, 4–5 mm long (excluding the callus); callus 0.2–0.8 mm long. Lower glume usually pilose with stiff rufous to pale yellow hairs; upper 3-nerved, sparsely hairy. Lower lemma about as long as the glumes; upper 2–2.5 cm long (including the awn), the column rusty-pubescent. Pedicellate spikelets hairy, 4.5–6 mm long.


Herbarium
Sheet

Herbarium
Sheet

Flowering: summer.

Distribution and occurrence: Grows as a roadside weed. Native of Afr.
NSW subdivisions: *NC, *CC, *NWS
Other Australian states: *Qld
AVH map***


The single subspecies in NSW. Characters and distribution as for the species in NSW.

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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