Poa neosachalinensis

HABIT Perennial; culms solitary. Rhizomes elongated. Culms geniculately ascending; 30–90 cm long. Lateral branches lacking. Leaves mostly basal. Leaf-sheaths scaberulous. Ligule an eciliate membrane; 1.5–4 mm long; acute. Leaf-blades flat, or conduplicate; 2–5 mm wide. Leaf-blade surface scaberulous.

INFLORESCENCE Inflorescence a panicle.

Panicle open; ovate; loose; nodding; 6–15 cm long. Primary panicle branches bearing 3–9 fertile spikelets on each lower branch. Panicle branches scabrous.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–7 fertile florets; with diminished florets at the apex. Spikelets oblong, or ovate; laterally compressed; 6–10 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes scaberulous. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume ovate; 0.75 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume apex acute. Upper glume elliptic, or ovate; 2.5–4 mm long; 0.66–0.75 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma lanceolate, or oblong; elliptic in profile; (3.5–)4–5(–6) mm long; membranous; keeled; 5 -veined. Lemma midvein ciliolate; hairy below. Lemma surface scaberulous; rough between veins; pubescent; hairy on veins. Lemma margins ciliolate; hairy below. Lemma apex acute. Palea 1 length of lemma; 2 -veined. Palea keels scaberulous; adorned above. Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Anthers 3; 1.5–2.5 mm long.

DISTRIBUTION Asia-temperate: Soviet far east and eastern Asia.

NOTES Poeae. Vasc Pl Russ Far East 2006.

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