Bugseeds and Tickseeds East of the Cascade Mountains of Oregon and Washington

American Bigseed, Common Bugseed: Corispermum americanum var. americanum (Synonym: Corispermum hyssopifolium) -

Hooker's Bugseed: Corispermum hookeri var. pseudodeclinatum -

Common Bugseed, Pacific Bugseed: Corispermum pacificum -

Pallas' Bugseed: Corispermum pallasii -

Pale Bugseed: Corispermum pallidum - Native. Extirpated?

Hairy Bugseed: Corispermum villosum - Native. State sensitive species in Washington.