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Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Elymus abolinii
HABIT Perennial; caespitose. Culms erect; 80–115 cm long. Leaf-sheaths smooth; glabrous on surface. Ligule an eciliate membrane. Leaf-blades 4–7 mm wide. Leaf-blade surface scabrous; glabrous, or pilose; hairy adaxially.
INFLORESCENCE Inflorescence composed of racemes.
Racemes 1; single; erect, or drooping; bilateral; 10–20 cm long. Rhachis flattened; scabrous on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear.
Spikelets solitary. Fertile spikelets sessile.
FERTILE SPIKELETS Spikelets comprising 5–7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 20 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 11–16 mm long; 1 length of upper glume; coriaceous; much thinner on margins; without keels; 5–7 -veined. Lower glume surface scabrous. Lower glume apex entire, or with a unilateral tooth; acuminate. Upper glume lanceolate; 11–16 mm long; 1.2 length of adjacent fertile lemma; coriaceous; with scarious margins; without keels; 5–7 -veined. Upper glume surface scabrous. Upper glume apex entire, or with a unilateral tooth; acuminate.
FLORETS Fertile lemma lanceolate; 9–13 mm long; coriaceous; 5 -veined. Lemma surface pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn ascending, or spreading; 3–22 mm long overall. Palea 8–10 mm long. Apical sterile florets resembling fertile though underdeveloped.
FLOWER Lodicules 2; membranous. Anthers 3; 3.5 mm long. Stigmas 2. Ovary pubescent on apex.
FRUIT Caryopsis with adherent pericarp.
DISTRIBUTION Asia-temperate: Soviet Middle Asia and China.
NOTES Triticeae. Fl USSR 1995.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.