Poa reverdattoi Roshev. - Poa reverdattoi


P. glauca Vahl subsp. reverdattoi (Roshev.) Tzvel.

Systematic position.

Family Poaceae Barnhart, Genus Poa L.

Morphology and biology.

Rough, perennial, tussock-forming grass. Height reaches 20-50 cm. Stem is thick, strong, rough. Upper node is located near the base of the stem. Leaf is 1-2 mm in width, grey-green, rough, usually setiferous. Lingula of upper leaves is 1-2 mm in length. Inflorescence is narrow, compact panicle 2 cm in width. Spikelet is 5-6 mm in length. Axis is pubescent. Lower floral glume exhibits downiness on the carina and along intermediate veins; pubescence is shorter between veins. Callus is bare. Cross-pollinated and wind-pollinated. Flowering and ripening occur in July-August. Seed and vegetative reproduction. Chromosomal number is unknown.


Distributed throughout Western Siberia (Eastern Altai), Eastern Siberia (basin of the River Angara and Western Sayany), and Northern Mongolia.


Species occurs on stony slopes and among rocks up to the middle and upper mountain zones.

Economic value.


Related references:

Cherepanov S.K. 1988. Vascular Plants of the Former USSR. St. Petersburg: Mir I Semia, 990 pp. (in Russian)
Malyshev L.I., Peshkova G.A., eds. 1990. Flora of Siberia. Vol. 2. Poaceae (Gramineae). Novosibirsk: Nauka, 361 pages.
Tzvelev N.N. 1976. Cereals of the USSR. Leningrad: Nauka, 788 pages.

© V.G. Funtova


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