Poa ajanensis

HABIT Perennial; caespitose; clumped densely. Culms 45–60 cm long; with 0.33 of their length below uppermost node. Culm-internodes smooth. Leaf-sheaths smooth, or scaberulous. Ligule an eciliate membrane; 1.5–2.3 mm long. Leaf-blades 1–2 mm wide. Leaf-blade surface scaberulous.

INFLORESCENCE Inflorescence a panicle. Peduncle scaberulous above.

Panicle open; ovate; 5.5–6.5 cm long. Primary panicle branches 4–4.5 cm long. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 2–3 fertile florets; with diminished florets at the apex. Spikelets ovate; laterally compressed; 4–5.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes sparsely hairy. Floret callus pilose.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.1–2.8 mm long; membranous; 1-keeled. Lower glume surface scabrous. Lower glume apex acute. Upper glume lanceolate; 2.1–2.8 mm long; membranous; 1-keeled. Upper glume surface scabrous. Upper glume apex acute.

FLORETS Fertile lemma elliptic; 3.5–3.8 mm long; membranous; keeled; 5 -veined. Lemma surface scabrous; pubescent; hairy below. Lemma apex obtuse. Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1.3–1.5 mm long.

FRUIT Caryopsis with adherent pericarp.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Poeae. Probatova 2008.

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