Elymus transhyrcanus

HABIT Perennial; caespitose. Culms 40–100 cm long. Leaf-sheath auricles falcate. Ligule an eciliate membrane. Leaf-blades flat, or involute; 3–5 mm wide. Leaf-blade surface scabrous; glabrous, or pilose; sparsely hairy; hairy adaxially.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; bilateral; 7–15 cm long. Rhachis flattened; scabrous on surface. Spikelet packing broadside to rhachis; lax.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 4–7 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; compressed slightly; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent; hairy on the margins.

GLUMES Glumes similar; shorter than spikelet. Lower glume lanceolate; 7–11 mm long; 1 length of upper glume; coriaceous; without keels; 3–7 -veined. Lower glume lateral veins ribbed. Lower glume surface scabrous; rough on veins. Lower glume apex acuminate; muticous, or awned; 1 -awned. Lower glume awn 0.5–1 mm long. Upper glume lanceolate; 7–11 mm long; 0.8–1 length of adjacent fertile lemma; coriaceous; without keels; 3–7 -veined. Upper glume lateral veins ribbed. Upper glume surface scabrous; rough on veins. Upper glume apex acuminate; muticous, or awned; 1 -awned. Upper glume awn 0.5–1 mm long.

FLORETS Fertile lemma lanceolate to oblong; 8.5–11 mm long; coriaceous; keeled; keeled above; 5 -veined. Lemma surface scaberulous; rough above. Lemma apex acute; muticous, or awned; 1 -awned. Principal lemma awn 0–5 mm long overall. 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: Soviet Middle Asia, Caucasus, and western Asia.

NOTES Triticeae. Fl Turk 1993.

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