Syn.: Microrhynchus glaucus (Pursh) D. C. Eaton., Tragopogon glaucus (Pursh) Steud., Troximon glaucum Pursh
Family: Asteraceae Bercht. et J. Presl
Agoseris glauca
Distribution: North American species found in southern Alaska, southern Northwest Territories, most of Canada with exception of the maritimes provinces, also in western part of US to New Mexico and absent in most of eastern states. Rare along the Pacific coast.
Ecology: Prairie grasslands, mountain meadows, open woodlands, at elevations from 100 to 2500(–3600) m asl. Blooms from June to August.
Agoseris glauca
Description: Perennial herb, acaulescent, 10–70 cm tall, hairless to woolly, exuding milky juice when damaged, from heavy taproot. Basal leaves petiolate, lanceolate to oblanceolate, 2–46 cm long, margins usually entire, sometimes dentate, rarely lobed, glabrous and glaucous or villous. Flower head solitary, on hollow peduncles, 2–5 cm across; phyllaries in 2–3 rows, linear to narrowly lanceolate, faintly dark-spotted or with faint black line in the middle, upper row brownish; disc florets absent, ray florets numerous, ligules 6–24 mm long, yellow. Fruit is an achene, 5–12 mm long, tapered to a beak, pappus of many pure white capillary bristles.
Note: The genus Agoseris includes about 11 species, which occur in North and South America.
Agoseris glauca
Agoseris glauca
Agoseris glauca
Agoseris glauca
Agoseris glauca
These images were taken in Canada, Alberta, Calgary, Confluence Park (June 13 and July 22, 2015) and Calgary, Nose Hill Park (July 18, 2015).