Seven species of annuals, biennials and perennials from western North America. They are tufted to small clump-forming, with entire or pinnatifid leaves and daisy-like flowerheads.
Although largely unknown in cultivation, the smallest species described here have potential for the rock garden, raised bed and alpine house. Sharply drained soil and a sunny site are essential. Propagation by seed when ripe, or spring in a cold frame. Division and basal shoots as cuttings could also be tried in spring.