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Aristida rufescens is a grass species native to Madagascar and to Mayotte in the Comoros archipelago. It was described by German agrostologist Ernst Gottlieb von Steudel in 1854.
The species is a perennial bunch grass with short rhizomes. Its culms are erect and 70–100 centimetres (28–39 in) long, with swollen nodes and hairy leaf sheaths. Leaf blades are 30–40 centimetres (12–16 in) long and 3 mm wide; they are stiff, leathery, and convolute. The inflorescence is a panicle in which each spikelet contains one fertile flower. Spikelets are lanceolate and 8.5 mm long. Upper and lower glumes have 1–2 mm long awns, and lateral lemmas have a 13–14 mm long awn, which is three-branched. The grass is a C4 plant.
Aristida acuta · Sixweeks threeawn · Aristida anaclasta · Aristida arida · Forked threeawn · Brush Spear Grass · Bentham's Aristida · California threeawn · Dark Wire Grass · Aristida capillacea · Chase's threeawn · Spreading Prickle Grass
Text excerpted from the Wikipedia article Aristida rufescens by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
