Colpodium hraczianum

HABIT Perennial. Rhizomes elongated. Culms erect, or geniculately ascending; 40–80 cm long. Ligule an eciliate membrane; 3–6 mm long. Leaf-blades 2–6 mm wide; glaucous. Leaf-blade surface smooth; glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle contracted; oblong; 5–9 cm long; 2–2.5 cm wide.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes smooth.

GLUMES Glumes persistent; similar; shorter than spikelet; similar to fertile lemma in texture. Lower glume ovate; 4.8–5.5 mm long; 1 length of upper glume; membranous; much thinner above; 1–3 -veined. Lower glume lateral veins absent, or distinct; all falling short of apex. Lower glume apex erose; obtuse. Upper glume ovate; 4.8–5.5 mm long; 0.9 length of adjacent fertile lemma; membranous; 1–3 -veined. Upper glume lateral veins absent, or distinct. Upper glume apex erose; obtuse.

FLORETS Fertile lemma elliptic; 5.5–6.2 mm long; much thinner on margins; keeled. Lemma surface pubescent; hairy below; hairy on veins. Lemma apex acute. Palea keels ciliolate. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 3–4 mm long; purple.

FRUIT Hilum elliptic.

DISTRIBUTION Asia-temperate: Caucasus.

NOTES Poeae. Gab. & Tzvelev 2008.

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