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.

Elymus kosaninii

HABIT Perennial; caespitose. Rhizomes short. Culms erect; slender; 35–40 cm long. Culm-internodes distally pubescent. Leaf-sheaths pubescent; outer margin hairy. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades convolute; 15–20 cm long; 2–4 mm wide; stiff; glaucous. Leaf-blade surface pubescent.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; bilateral; 5–12 cm long; bearing few fertile spikelets; bearing 5–8 fertile spikelets on each. Rhachis flattened; pilose on surface; scabrous on margins. Spikelet packing broadside to rhachis; lax.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 5–8 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; compressed slightly; 15 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume obovate; 6–7 mm long; 0.75 length of upper glume; coriaceous; much thinner on margins; without keels; 5 -veined. Lower glume lateral veins ribbed. Lower glume surface asperulous; rough on veins. Lower glume apex obtuse. Upper glume obovate; 8–9 mm long; 1 length of adjacent fertile lemma; coriaceous; with hyaline margins; without keels; 5 -veined. Upper glume lateral veins ribbed. Upper glume surface asperulous; rough on veins. Upper glume apex obtuse.

FLORETS Fertile lemma oblong; 8–9 mm long; coriaceous; keeled; keeled above; 5 -veined. Lemma apex acute; muticous. Palea keels ciliolate; adorned all along. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; elliptic; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: western Asia.

NOTES Triticeae. Fl Turk 1993.

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