General:
Annual or rarely biennial herb from a fibrous root; stems erect, branched, finely-appressed straight-hairy, to moderately stiff long-hairy, sometimes almost glabrous, 30-70 cm tall.

Leaves:
Basal leaves mostly oblanceolate or elliptic, tapering to the stalks, entire or toothed, 2-15 cm long, 3-25 mm wide, often deciduous, hairy like the stems; stem leaves similar, becoming reduced upwards.

Flowers:
Heads with ray and disk flowers, several to numerous in an open inflorescence, the disk 5-12 mm wide; involucres 2-5 mm tall; involucral bracts finely and obscurely glandular and more or less hairy, subequal, abruptly sharp-pointed or with long-pointed tips, with brown midveins and light greenish or yellowish margins; ray flowers 50-100, white, sometimes pink or bluish, 2-6 mm long, 0.4-1.0 mm wide; disk flowers 1.5-2.6 mm long.

Fruits:
Achenes 2-nerved, hairy; pappus double, the inner of 10-15 fragile bristles, these lacking from the ray flowers, the outer of short bristles or scales.

Source:  The Illustrated Flora of British Columbia

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:
Erigeron annuus subsp. strigosus (Muhl. ex Willd.) Wagenitz
Erigeron ramosus (Walter) Britton, Sterns & Poggenb.
Erigeron strigosus var. discoideus Robbins ex A. Gray
Erigeron strigosus var. eligulatus Cronquist
Erigeron strigosus var. typicus Cronquist
Erigeron traversii Shinners
Stenactis strigosa (Muhl. ex Willd.) DC.