Elymus magadanensis

HABIT Perennial; culms solitary, or caespitose; clumped loosely. Culms erect; 50–90 cm long; 2–3 -noded. Leaf-sheaths pilose; with reflexed hairs. Ligule an eciliate membrane. Leaf-blades flat, or convolute; 20–30 cm long; 2–5 mm wide. Leaf-blade surface ribbed; grooved adaxially; scabrous; rough adaxially; pilose; moderately hairy, or densely hairy; hairy adaxially.

INFLORESCENCE Inflorescence composed of racemes.

Racemes 1; single; straight, or arcuate; bilateral; 20–30 cm long; 10 mm wide; bearing 20–25 fertile spikelets on each. Rhachis flattened; pubescent on surface; ciliate on margins. Spikelet packing broadside to rhachis; crowded.

Spikelets solitary. Fertile spikelets sessile.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets elliptic to oblong; laterally compressed; 14–18 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.

GLUMES Glumes persistent; similar. Lower glume oblong, or ovate; 5–8 mm long; 1 length of upper glume; coriaceous; without keels; 3–5 -veined. Lower glume apex acuminate; awned; 1 -awned. Lower glume awn 5–8 mm long. Upper glume lanceolate; 5–8 mm long; 0.5 length of adjacent fertile lemma; coriaceous; without keels; 3–5 -veined. Upper glume apex acuminate; awned; 1 -awned. Upper glume awn 5–8 mm long.

FLORETS Fertile lemma lanceolate; 10–13 mm long; 2.5–3 mm wide; coriaceous; keeled; 5 -veined. Lemma surface pilose. Lemma apex acute; awned; 1 -awned. Principal lemma awn straight, or curved; 7–10 mm long overall. Palea 1 length of lemma; 2 -veined. Palea keels scabrous. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 2–2.5 mm long; yellow.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Triticeae. Khokhrjakan 2005.

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