Poa botryoides (Trin. ex Griseb.) Kom. - Poa botryoides

Systematic position.

Family Poaceae Barnhart, genus Poa L.


P. attenuata Trin. subsp. botryoides (Trin. ex Griseb.) Tzvel., P. attenuata var. botryoides (Trin. ex Griseb.) Tzvel.

Morphology and biology.

Perennial, tussock-forming, gray-green, hard grass. Height reaches 25-60 cm. Stem is rough; upper node is located near base in the lower sixth of the stem, or, rarely, as high as the lower third of the stem. Leaf is 0.5-1.5 mm in width, short, hard. Lingula is 1.5-2 mm in length. Inflorescence is compact or, rarely, elongated pyramidal panicle with sharp, rough branches. Spikelet is 3-5 mm in length, pubescent along keel and extremity veins. Long, winding hairs is may or may not be present on the callus. Cross-pollinated and wind-pollinated. Flowering and ripening occur in June-July. Seed and vegetative reproduction. Chromosomal number 2n=28, 42.


Occurs in Western Siberia (Altai), Eastern Siberia (southeastern part), the Far East (invasive in the south), Mongolia, and China (northeastern part).


Species occurs on steppes, on stony slopes, among rocks, and sometimes in well-lit forests as high as the middle mountain zone.

Economic value.


Related references:

Cherepanov S.K. 1988. Plantae Vasculares Rossicae et Civitatum Collimitanearum (in limics USSR olim). 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).

© V.G. Funtova

Photo © E.A. Dzyubenko

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