E-Flora BC: Electronic Atlas of the Flora of British Columbia

Podagrostis aequivalvis (Trin.) Scribn. & Merr.
Alaska bentgrass (arctic bentgrass)
Poaceae (Grass family)

Introduction to Vascular Plants

© Adolf Ceska  Email the photographer   (Photo ID #20965)

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Distribution of Podagrostis aequivalvis
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Species Information

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Perennial, loosely tufted grass from rhizomes, the tufts scattered, the rhizomes less than 2 cm long; stems 25-70 cm tall.
Sheaths smooth; blades 4-18 cm long, 1-2.5 mm wide, flat; ligules 0.5-2 mm long, slightly rough on the outside.
Inflorescence lanceolate, open, loose, often drooping, 5-15 cm long, the lower branches more or less spreading, 3-6 cm long; spikelets sparse; glumes 2.7-4.3 mm long; lemmas 2.5-3.5 mm long, awnless, the callus hairs absent or sparse to 0.1 mm long; rachillas present behind the paleas as minute bristles in some spikelets, 0.5-1.9 mm long with terminal tufts of hairs less than 1/4 of the length; paleas present, 2-3 mm long; anthers 0.8-1.5 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist streamsides, bogs, open bog forests and seepage areas in the lowland and lower subalpine zones; common in coastal BC; N to AK and S to OR.

Source: The Illustrated Flora of British Columbia

Synonyms and Alternate Names

Agrostis aequivalvis (Trin.) Trin.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References