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 kokonoricus

HABIT Perennial; caespitose; clumped loosely. Rhizomes short. Culms 40–100 cm long. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane. Leaf-blades conduplicate; 1.5–3 mm wide.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; linear, or oblong; bilateral; 4–7 cm long. Rhachis ciliate on margins. Spikelet packing broadside to rhachis; crowded; 2 -rowed. Rhachis internodes 2–3(–8) mm long.

Spikelets ascending, or spreading; solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–6 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 6–11 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus base truncate.

GLUMES Glumes similar; subequal in width; shorter than spikelet. Lower glume lanceolate; 3.5–5 mm long; 1 length of upper glume; coriaceous; 1-keeled; keeled above; 1–3 -veined. Lower glume lateral veins absent, or obscure. Lower glume surface pilose. Lower glume apex acute; awned; 1 -awned. Lower glume awn 3–4 mm long. Upper glume lanceolate; 3.5–5 mm long; 0.75–0.85 length of adjacent fertile lemma; coriaceous; 1-keeled; keeled above; 3–5 -veined. Upper glume surface pilose. Upper glume apex acute; awned; 1 -awned. Upper glume awn 3–4 mm long.

FLORETS Fertile lemma lanceolate to oblong; 4.5–6 mm long; coriaceous; 5 -veined. Lemma surface pilose. Lemma apex acute; awned; 1 -awned. Principal lemma awn 4–6 mm long overall. Apical sterile florets resembling fertile though underdeveloped.

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

FRUIT Caryopsis with adherent pericarp. Hilum linear.

DISTRIBUTION Asia-temperate: China.

NOTES Triticeae. Pl Cent Asia 1996.

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