Stipa korshinskyi

HABIT Perennial; caespitose; clumped densely. Culms 35–70 cm long. Culm-internodes distally glabrous. Leaf-sheaths mostly shorter than adjacent culm internode. Ligule an eciliate membrane; 0.5 mm long on basal shoots. Leaf-blades filiform; conduplicate; 1–2 mm wide. Leaf-blade surface ribbed; scabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; linear; 10–20 cm long; bearing few spikelets.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 12–16 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; pungent.

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; 12–16 mm long; membranous; without keels. Upper glume apex acuminate.

FLORETS Fertile lemma lanceolate; subterete; 8–9 mm long; coriaceous; without keel; 5 -veined. Lemma surface pubescent. Lemma margins convolute; covering most of palea. Lemma apex surmounted by a ring of hairs; awned; 1 -awned. Principal lemma awn bigeniculate; 90–120 mm long overall; with twisted column; limb pubescent. Column of lemma awn puberulous; hairy on the spiral. Palea 1 length of lemma; 2 -veined; without keels.

FLOWER Lodicules 3. Anthers 3. Stigmas 2. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp; fusiform. Hilum linear.

DISTRIBUTION Europe: eastern. Asia-temperate: Siberia and Soviet Middle Asia.

NOTES Stipeae. Fl USSR 1995.

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