Chionochloa oreophila

Detailed description

Small, pale tussock with persistent sheaths, and leaves very much shorter than slender flowering culms. Leaf-sheath to 50 mm, pale, shiny, glabrous, chartaceous, persistent, margins undulating, apical tuft of hairs to 3 mm. Ligule 0.5–1.0 mm. Leaf-blade to 150 × 2 mm, U- or V-shaped, persistent, spiralling, pointed, narrower than sheath, keeled, veins few, abaxially with prickle-teeth in upper 1/3, long interrib hairs frequent; adaxially with scattered prickle-teeth; margins with prickle-teeth below becoming glabrous above. Culm to 300 mm, internodes glabrous. Inflorescence to 60 mm, up to 8 spikelets on flexuous, pulvinate branches, glabrous except for few long hairs at branch axils and below spikelets. Spikelets small, solitary, of up to 6 purpled or golden florets. Glumes ± equal, to 10 mm, apex sometimes shortly awned, > adjacent lemma lobes; lower 3–5-nerved, upper 5–7-nerved, margin often long hairy below. Lemma to 4.5 mm; hairs long on margins, few aside central nerves and often few in all internerves, < sinus; lateral lobes to 4.5 mm including awn to 2.5 mm, or shortly acute-triangular; central awn to 5.5 mm reflexed from flat 1.5 mm column. Palea to 5.5 mm. Callus to 1.5 mm, hairs to 2.5 mm. Rachilla to 0.75 mm. Lodicules to 0.6 mm. Anthers to 2.5 mm. Ovary to 0.7 mm; stigma-styles to 3 mm. Seeds to 2 mm.