General:
Biennial herb from a short taproot; stems erect, many, simple to branched near the base, 10-50 cm tall.
Leaves:
Basal leaves forming a tuft, egg-shaped to oblanceolate, unstalked, 1.5-4 cm long, rounded at the tip, 3- to 5-veined; lower stem leaves similar to basal; upper stem leaves reduced, narrower, becoming more pointed at the tip.
Flowers:
Inflorescence of crowded, flat-topped, terminal clusters of unstalked or short-stalked flowers; corollas yellowish to pinkish-red, 1.1-1.6 cm long; calyces 4-6 mm long, lobes slender; anthers 1.5-2 mm long and conspicuously twisted; bracteoles 2, subtending the axillary flowers.
Fruits:
Capsules, cylindric, slender, thin-walled, 8-10 mm long; seeds irregularly angled, honeycombed, pitted.
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
Synonyms and Alternate Names:
Centaurium minus auct. non Moench [misapplied]
Centaurium umbellatum
Erythraea centaurium auct.