GrassBase - The Online World Grass Flora

Descriptions

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

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

Stipa consanguinea

HABIT Perennial; caespitose. Culms 17–25(–75) cm long. Ligule an eciliate membrane; 1–1.5 mm long. Leaf-blades linear; flat, or conduplicate; 10–20 cm long; 1–5 mm wide. Leaf-blade surface puberulous; hairy adaxially, or on both sides. Leaf-blade apex hardened.

INFLORESCENCE Inflorescence a panicle; embraced at base by subtending leaf.

Panicle contracted; linear; 6–12 cm long; 1–2 cm wide.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 20–25 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 1.8–2.3 mm long; pubescent; pungent.

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 attenuate. Upper glume lanceolate; 20–25 mm long; membranous; without keels; 3 -veined. Upper glume apex attenuate.

FLORETS Fertile lemma elliptic; subterete; 8–10 mm long; coriaceous; without keel. 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 curved; twisted together; 55–90 mm long overall; with twisted column; deciduous; limb pubescent; with 0.5–0.8 mm long hairs. Column of lemma awn pubescent; with 0.5–0.8 mm long hairs. Palea 1 length of lemma; 2 -veined; without keels.

FLOWER Anthers 3. Stigmas 2. Ovary glabrous.

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-temperate: Siberia, China, and Mongolia. Asia-tropical: India.

NOTES Stipeae. Fl Pak 1993.

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