GrassBase - The Online World Grass Flora


W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson

© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.

Stipa czerepanovii

HABIT Perennial; caespitose. Butt sheaths persistent and investing base of culm; with compacted dead sheaths. Culms 45–60 cm long. Culm-internodes distally glabrous. Leaf-sheaths pubescent; outer margin hairy. Ligule a ciliolate membrane; 1–2 mm long; 0.5–1.1 mm long on basal shoots; pubescent on abaxial surface. Leaf-blades filiform; conduplicate; 0.3–0.45 mm wide. Leaf-blade surface scabrous; rough abaxially; puberulous; hairy adaxially.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 10–20 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 13–15 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1.4–1.6 mm long; pubescent; pungent.

GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; membranous; without keels. Lower glume primary vein scabrous. Lower glume apex attenuate. Upper glume lanceolate; 13–15 mm long; membranous; without keels. Upper glume primary vein scabrous. Upper glume apex attenuate.

FLORETS Fertile lemma elliptic; subterete; 7–7.5 mm long; coriaceous; without keel. Lemma surface pubescent; hairy in lines (7 lines). Lemma margins convolute; covering most of palea. Lemma apex surmounted by a ring of hairs; awned; 1 -awned. Principal lemma awn bigeniculate; 60–75 mm long overall; with twisted column; limb pubescent; with 1.3–1.5 mm long hairs. Column of lemma awn pubescent; with 0.3–0.5 mm long hairs. Palea without keels.

FLOWER Anthers 3; 4–4.5 mm long.

DISTRIBUTION Asia-temperate: Soviet Middle Asia.

NOTES Stipeae. Kotuchov 2006.

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