Poa filiculmis Roshev. - Poa filiculmis
Systematic position.Family Poaceae Barnhart, genus Poa L.
Morphology and biology.Perennial, tussock-forming, gray-green, hard grass. Height reaches 20-40 (50) cm. Stem is thin, rising, rough under inflorescences. Upper node is located near the base of the stem. Leaf is 0.5-1.5 mm in width, short, hard. Lingulas of upper leaves are 1.5-2.5 mm in length. Inflorescence is an elongated, pyramidal panicle. It is compact, like spike, with sharp, rough branches. Spikelet is 3.5-5 mm in length. Lower floral glume has pressed hairs at its base and along veins. Long, winding hairs may or may not develop on the callus. Cross-pollinated and wind-pollinated. Flowering and ripening occur in July-August. Seed and vegetative reproduction. Chromosomal number is unknown.
Distribution.Occurs throughout Eastern Siberia (the arctic part, the basin of the River Lena, Kolyma, Hatanga, Indigirka) and the Far East (the arctic part, the basin of the River Anadyr').
Ecology.Species occurs on stony slopes, among rocks, and on sandy shelves up to the lower mountain zone.
Related references:Cherepanov S.K. 1988. Vascular plants of Former USSR. St. Petersburg: Mir I Semia, 990 pp. (in Russian)
Malyshev L.I., Peshkova G.A., eds. 1990. Flora of Siberia. Vol. 2. Novosibirsk: Nauka, 361 pp. (in Russian).
Tolmachev A.I., ed. 1964. Arctic flora of the USSR. Vol. 2. Moscow-Leningrad: Nauka, 273 pp. (in Russian)
Tzvelev N.N. 1976. Poaceae USSR. L.: Nauka, 788 pp. (in Russian).