Stipa inebrians

HABIT Perennial; caespitose. Culms erect; 30–60 cm long. Culm-internodes distally glabrous. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; truncate. Leaf-blades involute; 20 cm long; 4–6 mm wide. Leaf-blade surface ribbed; scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 12–18 cm long. Primary panicle branches 2.5–5 cm long; bearing spikelets almost to the base.

Spikelets solitary. Fertile spikelets pedicelled. Pedicels 2–4 mm long.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 5 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; acute.

GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume apex acuminate. Upper glume lanceolate; 5 mm long; membranous; without keels; 3 -veined. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; subterete; 3 mm long; membranous; dark brown; without keel; 3 -veined. Lemma surface pilose; with conspicuous apical hairs. Lemma margins flat; covering most of palea. Lemma apex emarginate; pubescent; awned; 1 -awned. Principal lemma awn geniculate; 10 mm long overall; with twisted column. Column of lemma awn puberulous. Palea 0.8 length of lemma; 1 -veined; without keels.

FLOWER Lodicules 3. Anthers 3; anther tip penicillate. Stigmas 2. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; fusiform. Hilum linear.

DISTRIBUTION Asia-temperate: China and Mongolia.

NOTES Stipeae. Hance 1995.

Please cite this publication as detailed in How to Cite Version: 3rd February 2016.