Poa smirnowii

HABIT Perennial; caespitose; clumped loosely. Rhizomes elongated. Culms erect; 25–40 cm long. Culm-internodes smooth. Lateral branches lacking. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 3 mm long; obtuse. Leaf-blades 2–4 mm wide. Leaf-blade surface smooth; glabrous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; pyramidal; 5–8 cm long.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–4 fertile florets; with a barren rhachilla extension. Spikelets oblong; laterally compressed; 5–7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 0.9 length of upper glume; membranous; much thinner on margins; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume ovate; 1 length of adjacent fertile lemma; membranous; with hyaline margins; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; 3.5–4.5 mm long; membranous; much thinner on margins; keeled; 5 -veined. Lemma midvein ciliate. Lemma surface puberulous; hairy below. Lemma margins ciliate. Lemma apex acute.

FLOWER Lodicules 2; membranous. Anthers 3.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: Siberia, China, and Mongolia.

NOTES Poeae. Fl USSR 1995.

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