Ionactis stenomeres

Ionactis stenomeres, the Rocky Mountain aster, is a rare North American species in the family Asteraceae. It in the Province of British Columbia in western Canada and also in the northwestern United States (Washington, Idaho, Montana).

Description
Ionactis stenomeres is a small perennial up to 30 cm tall, with a woody underground caudex. The plant usually produces only one flower head, each with 7-21 blue or lavender ray flowers surrounding yellow disc flowers.