Elymus probatovae

HABIT Perennial; caespitose; clumped loosely. Culms erect; 30–60 cm long. Culm-nodes pubescent. Ligule an eciliate membrane. Leaf-blades 1.2–4 mm wide. Leaf-blade surface puberulous; hairy on both sides.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; bilateral; 3–8 cm long. Rhachis flattened. Spikelet packing broadside to rhachis; crowded; regular; 2 -rowed.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 6.5–8 mm long; 1 length of upper glume; coriaceous; much thinner above; without keels; 3–5 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; mucronate. Upper glume lanceolate; 7–10 mm long; 6.5–8 length of adjacent fertile lemma; coriaceous; much thinner above; without keels; 3–5 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate; mucronate.

FLORETS Fertile lemma lanceolate to oblong; 7.5–10 mm long; coriaceous; without keel; 5 -veined. Lemma surface scabrous. Lemma apex acute; awned; 1 -awned. Principal lemma awn 2–4 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Triticeae. Tzvelev 2011.

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