Poa kolymensis

HABIT Perennial; caespitose; clumped densely. Culms 7–25 cm long. Lateral branches lacking. Leaf-sheaths tubular for much of their length; with 1 of their length closed; glabrous on surface. Ligule an eciliate membrane; 2–4 mm long; 0.7–2 mm long on basal shoots; acute. Leaf-blades flat, or conduplicate; 0.6–1.5 mm wide. Leaf-blade surface scabrous; rough on both sides.

INFLORESCENCE Inflorescence a panicle. Peduncle smooth, or scaberulous above.

Panicle open, or contracted; elliptic; 2–5 cm long. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 4–6 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes scaberulous. Floret callus glabrous.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.3–3.8 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex acute. Upper glume ovate; 2.8–3.8 mm long; 0.8–0.9 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; elliptic in profile; 3.5–4.3 mm long; membranous; keeled; 5 -veined. Lemma surface scaberulous; pubescent; hairy on back, or on veins. Lemma apex acute. Palea keels ciliolate; adorned above. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 1.3–1.7 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Poeae. Tsvelev 1995.

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