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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 clivorum
HABIT Perennial; caespitose; clumped loosely. Rhizomes short. Culms 45–50 cm long. Leaf-sheaths outer margin hairy. Ligule an eciliate membrane. Leaf-blades flat, or involute; 2–3 mm wide. Leaf-blade surface pubescent; hairy adaxially. Leaf-blade margins cartilaginous; spinulose.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1; single; bilateral; 5–6 cm long. Rhachis flattened; scaberulous on margins. Spikelet packing broadside to rhachis.
Spikelets solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 3 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 10–11 mm long; falling entire.
GLUMES Glumes similar; shorter than spikelet. Lower glume elliptic, or oblong; 5–6 mm long; 1 length of upper glume; coriaceous; without keels; 3–4 -veined. Lower glume lateral veins ribbed. Lower glume apex acute. Upper glume elliptic, or oblong; 5–6 mm long; 0.8–0.9 length of adjacent fertile lemma; coriaceous; without keels; 3–4 -veined. Upper glume lateral veins ribbed. Upper glume apex acuminate.
FLORETS Fertile lemma lanceolate to oblong; 6–7 mm long; coriaceous; keeled; keeled above; 5 -veined. Lemma apex obtuse; muticous, or mucronate. Palea 1 length of lemma. Palea keels ciliolate; adorned above. 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.