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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.
Elymus edelbergii
HABIT Perennial; caespitose. Butt sheaths pubescent. Culms 30–90 cm long; 1–4 -noded. Culm-nodes pubescent. Leaf-sheaths glabrous on surface; outer margin glabrous. Leaf-sheath oral hairs lacking. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 0.2–1 mm long; lacerate. Leaf-blades 6.5–11 cm long; 2.5–4 mm wide. Leaf-blade surface scabrous; rough on both sides; glabrous, or pilose; sparsely hairy; hairy adaxially. Leaf-blade margins scabrous.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1; single; straight, or arcuate; bilateral; 8–12.5 cm long. Rhachis flattened; scaberulous on margins; ciliate on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear.
Spikelets solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 3–4 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 8–14 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
GLUMES Glumes collateral; persistent; similar; reaching apex of florets. Lower glume lanceolate; 6–8.5 mm long; 0.8–0.9 length of upper glume; coriaceous; much thinner on margins; without keels; 3–5 -veined. Lower glume lateral veins prominent. Lower glume surface scabrous; rough on veins. Lower glume apex attenuate; awned; 1 -awned. Lower glume awn 1–3 mm long. Upper glume lanceolate; 7.5–10 mm long; 1 length of adjacent fertile lemma; coriaceous; with hyaline margins; without keels; 3–5 -veined. Upper glume lateral veins prominent. Upper glume surface scabrous; rough on veins. Upper glume apex attenuate; awned; 1 -awned. Upper glume awn 1–3 mm long.
FLORETS Fertile lemma lanceolate, or oblong; 7–9.5 mm long; coriaceous. Lemma surface pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 10–30 mm long overall. Palea lanceolate; 1 length of lemma. Palea keels ciliolate. Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3; 2.5 mm long; yellow. Stigmas 2. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-temperate: western Asia.
NOTES Triticeae. Melderis 1994.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
