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 nepalensis

HABIT Perennial; caespitose. Butt sheaths glabrous to pubescent. Culms erect; 60–70 cm long. Culm-internodes antrorsely scabrous; distally pubescent. Culm-nodes pubescent. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; lacerate; obtuse. Leaf-blades 10–17 cm long; 1–6 mm wide; mid-green. Leaf-blade surface scabrous; rough adaxially; glabrous, or pilose; sparsely hairy; hairy on both sides. Leaf-blade margins scabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; drooping; bilateral; 6–12 cm long. Rhachis flattened; puberulous on surface; scabrous on margins; ciliate on margins. Spikelet packing broadside to rhachis; lax.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets lanceolate, or oblong; laterally compressed; 12–15 mm long; falling entire. Spikelet callus base truncate. Rhachilla internodes pubescent.

GLUMES Glumes similar; shorter than spikelet. Lower glume lanceolate; 4–5.5 mm long; 0.75 length of upper glume; coriaceous; much thinner on margins; without keels; 3–5 -veined. Lower glume surface puberulous; hairy on veins. Lower glume apex acute, or acuminate. Upper glume lanceolate; 5.5–8 mm long; 0.66–0.9 length of adjacent fertile lemma; coriaceous; with scarious margins; without keels; 3–5 -veined. Upper glume surface puberulous; hairy on veins. Upper glume apex acute, or acuminate.

FLORETS Fertile lemma lanceolate; 8–9 mm long; coriaceous; mid-green, or mid-green and purple; suffused with last colour; keeled; keeled above; 5 -veined. Lemma surface puberulous. Lemma apex acuminate; awned; 1 -awned. Principal lemma awn straight; 10–20 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels ciliolate; adorned above. Palea surface puberulous; hairy on back. Palea apex emarginate, or truncate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 2–2.5 mm long; yellow, or purple. Stigmas 2.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-tropical: India.

NOTES Triticeae. Bor 1997.

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