Annual, tufted grass from fibrous roots; stems 1 to several, slender, delicate, hollow, smooth or short-hairy below the nodes, 5-30 cm tall.
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.
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.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|CDF(16), CWH(4), IDF(1)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Aira capillaris Host, non Savi
Aira caryophyllea var. capillaris (Host) Mutel
Aira elegans subsp. ambigua (Arcang.) Holub
Aira elegantissima Schur
Aspris capillaris (Host) Hitchc.