Stipa roshevitzii

HABIT Perennial; caespitose; clumped densely. Stolons present. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Culms erect, or geniculately ascending; 12–90 cm long; 2.5 mm diam.; 2–3 -noded. Ligule an eciliate membrane; 0.5–1 mm long. Leaf-blades filiform; convolute; 10–20 cm long; 1–3 mm wide; stiff. Leaf-blade venation with 12 secondary veins. Leaf-blade surface scabrous; rough adaxially. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; elliptic; 12–25 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 3–4 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus brief; 0.5 mm long; pubescent; obtuse.

GLUMES Glumes persistent; similar; shorter than spikelet, or reaching apex of florets; thinner than fertile lemma. Lower glume lanceolate, or elliptic; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume apex acute, or acuminate. Upper glume lanceolate, or elliptic; 3–4 mm long; 0.75–1 length of adjacent fertile lemma; membranous; without keels; 2 -veined. Upper glume apex acute, or acuminate.

FLORETS Fertile lemma elliptic; subterete; 4 mm long; coriaceous; without keel. Lemma surface pubescent. Lemma margins convolute; covering most of palea. Lemma apex muticous. Palea without keels.

FRUIT Caryopsis with adherent pericarp; oblong; hairy at apex. Hilum linear.

DISTRIBUTION Asia-temperate: Caucasus.

NOTES Stipeae. Musaev 2007.

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