General: Annual, tufted grass from fibrous roots; stems 1 to several, slender, delicate, hollow, smooth or short-hairy below the nodes, 5-30 cm tall.
Leaves: Sheaths open; blades 4-15 cm long, 0.3-0.7 mm wide, threadlike, in-rolled; ligules 1.5-3.5 mm long, blunt, minutely rough to short-hairy, more or less irregular and jagged.
Flowers: Inflorescence an open panicle, 2-6 cm long and nearly as wide; spikelet stalks longer than spikelets; glumes 2.5-2.8 (3) mm long; lemmas 2-2.3 mm long, awned, the awns 2.5-3.5 mm long; anthers about 0.3 mm long.
Very shade-intolerant, submontane to montane, European grasses introduced to Pacific and Atlantic North America. Both Aira caryophyllea and Aira praecox occur in maritime to su maritime summerdry cool mesothermal climates on very dry to moderately dry soils, and, A. praecox, on nitrogen-poor soils. Scattered in the open and open-canopy coniferous forests on very shallow and strongly drained soils of rock outcrops. Characteristic of moisture-deficient sites.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2022-08-19 11:11:34 AM
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