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

Ventenata dubia (Leers) Coss.
ventenata (North Africa grass)
Poaceae (Grass family)

Introduction to Vascular Plants

© Curtis Bjork  Email the photographer   (Photo ID #21998)

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Distribution of Ventenata dubia
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Species Information

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Annual grass from fibrous roots, smooth to short-hairy, basally branched; stems mostly 30-70 cm tall.
Sheaths usually minutely rough but sometimes soft-hairy; blades flat but becoming in-rolled, usually smooth on the upper surfaces but rough on the lower ones, 1-3 mm wide; ligules smooth, rounded, usually jagged, 1-8 mm long.
Inflorescence an open panicle, 10-40 cm long, the branches spreading to drooping; spikelets usually 3-flowered; glumes sometimes awn-tipped, the lower ones 6- or 7-nerved, 5-6.5 mm long, the upper ones 8- or 9-nerved, 7-9 mm long; lower lemmas slightly exceeding the glumes, awned from long-pointed tips, the awns 1-3 mm long; upper 1 or 2 lemmas with bristlelike teeth, the teeth 1.5-2 mm long, awned, the awns attached on the backs, twisted and abruptly bent, 10-16 mm long; lodicules about 0.7 mm long; anthers about 1.3 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry roadsides in the lowland zone; rare in SW BC (lower Fraser Valley); introduced from S Eurasia.

Source: The Illustrated Flora of British Columbia


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Avena dubia Leers
Ventenata avenacea Koel.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References