Poa tenkensis

HABIT Perennial; caespitose. Rhizomes absent. Culms erect; (37–)50–80(–85) cm long; with 0.33 of their length below uppermost node. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; (1.4–)1.5–1.8(–2.5) mm long. Leaf-blades flat; 1.2–2.4(–3) mm wide.

INFLORESCENCE Inflorescence a panicle. Peduncle scaberulous above.

Panicle contracted; linear; loose; (9–)10–16(–18) cm long. Primary panicle branches ascending. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising (2–)3–5(–6) fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; (4–)4.5–6.5(–7) mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes glabrous, or pubescent. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3–3.8 mm long; 0.75 length of upper glume; membranous; 1-keeled. Lower glume apex acute. Upper glume lanceolate; 4–4.8 mm long; 1.1 length of adjacent fertile lemma; membranous; 1-keeled. Upper glume apex acute.

FLORETS Fertile lemma ovate; (2.8–)3.6–4.1 mm long; membranous; keeled; 5 -veined. Lemma midvein pubescent; hairy below. Lemma margins pubescent. Lemma apex acute. Palea keels scabrous. Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; (1.3–)1.5–1.8 mm long.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Poeae. Probatova 2014.

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