Stipa kopetdaghensis

HABIT Perennial; caespitose; clumped densely. Culms 30–60 cm long. Culm-internodes distally pubescent. Culm-nodes pubescent. Leaf-sheaths puberulous; outer margin hairy. Ligule an eciliate membrane; 1–4.5 mm long on basal shoots. Leaf-blades filiform; conduplicate; 0.4–0.8 mm wide. Leaf-blade surface ribbed; scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 12–22 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 35–50 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. Lower glume apex acuminate. Upper glume lanceolate; 35–50 mm long; membranous; without keels. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; subterete; 12.5–14.8 mm long; coriaceous; without keel; 5 -veined. Lemma surface pubescent; hairy below; hairy in lines. Lemma margins convolute; covering most of palea. Lemma apex surmounted by a ring of hairs; awned; 1 -awned. Principal lemma awn geniculate; 160–190 mm long overall; with twisted column; limb plumose; with 5 mm long hairs. Column of lemma awn glabrous. Palea without keels.

FLOWER Anthers 3. Stigmas 2. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; fusiform. Hilum linear.

DISTRIBUTION Asia-temperate: Soviet Middle Asia.

NOTES Stipeae. Czoranov 1995.

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