Annual herb from a taproot; stems erect, simple or branched above, glabrous, 10-70 cm tall.
Basal leaves soon deciduous; stem leaves linear or nearly so, entire, 3-12 cm long, 1-9 mm wide.
Heads disciform, several to numerous in an open, branched or spikelike inflorescence; involucres 5-11 mm tall; involucral bracts equal or more often graduated in 2-3 series, linear, the tips sharp- to long-pointed, leafy, loose, glabrous; ray flowers lacking; female flowers white or pale lavender, more numerous than the disk flowers, with tubular-threadlike corollas.
Achenes appressed-hairy; pappus white, copious and soft, surpassing the corollas.
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
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Aster brachyactis S.F. Blake
Brachyactis angusta (Lindl.) Britton
Brachyactis ciliata (Ledeb.) Ledeb.
Brachyactis ciliata subsp. angusta (Lindl.) A.G. Jones
Tripolium angustum Lindl.