Elymus drobovii

HABIT Perennial. Rhizomes elongated. Culms erect; 100–200 cm long. Culm-internodes smooth. Ligule an eciliate membrane. Leaf-blade base broadly rounded. Leaf-blades linear, or lanceolate; 15–35 cm long; 10–15 mm wide. Leaf-blade surface scabrous; rough on both sides; glabrous. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; bilateral; 8–16 cm long. Rhachis flattened; smooth on margins. Spikelet packing broadside to rhachis. Rhachis internodes linear. Rhachis internode tip flat.

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; 10–15 mm long; breaking up at maturity; disarticulating below each fertile floret.

GLUMES Glumes collateral; persistent; similar; shorter than spikelet. Lower glume elliptic, or oblong; 10–15 mm long; 1 length of upper glume; coriaceous; without keels; 5–7 -veined. Lower glume surface scabrous; rough on veins. Lower glume apex acute; awned; 1 -awned. Lower glume awn 6–10 mm long. Upper glume elliptic, or oblong; 10–15 mm long; 1.1 length of adjacent fertile lemma; coriaceous; without keels; 5–7 -veined. Upper glume surface scabrous; rough on veins. Upper glume apex acute; awned; 1 -awned. Upper glume awn 6–10 mm long.

FLORETS Fertile lemma elliptic; 9–13 mm long; coriaceous; 5 -veined. Lemma surface pubescent. Lemma apex acute; awned; 1 -awned. Principal lemma awn 15–26 mm long overall. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3. Stigmas 2. Ovary pubescent on apex.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: Soviet Middle Asia.

NOTES Triticeae. Fl Iran 1995.

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