Poa kamczatensis

HABIT Perennial; caespitose; clumped loosely. Culms decumbent; 30–70 cm long; 3–5 -noded. Lateral branches lacking. Leaf-sheaths open for most of their length; with 0.25–0.33 of their length closed; scaberulous; glabrous on surface. Ligule an eciliate membrane; 2.5–5 mm long; acute. Leaf-blades 2.5–4 mm wide. Leaf-blade surface scabrous; rough on both sides. Leaf-blade apex acuminate.

INFLORESCENCE Inflorescence a panicle.

Panicle open; lanceolate, or elliptic; 7–10 cm long. Primary panicle branches 2–3 -nate; bearing 6–15 fertile spikelets on each lower branch.

Spikelets solitary. Fertile spikelets pedicelled.

FERTILE SPIKELETS Spikelets comprising 3–5 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5–8 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent. Floret callus woolly.

GLUMES Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 2.9–4.2 mm long; 1 length of upper glume; membranous; 1-keeled; 3 -veined. Lower glume apex acute. Upper glume ovate; 2.9–4.2 mm long; 1 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex acute.

FLORETS Fertile lemma ovate; 3–4 mm long; membranous; keeled; 5 -veined. Lemma midvein ciliate. Lemma lateral veins with distinct primaries but obscure intermediates. Lemma surface scabrous; rough above. Lemma margins ciliate. Lemma apex obtuse. Palea keels scabrous; ciliolate; adorned below (as to hairs). Palea surface puberulous; hairy on back. Apical sterile florets resembling fertile though underdeveloped.

FLOWER Lodicules 2; membranous. Anthers 3; 1.3–1.9 mm long.

FRUIT Caryopsis with adherent pericarp. Hilum punctiform.

DISTRIBUTION Asia-temperate: Soviet far east.

NOTES Poeae. Probat 1995.

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