Latin Common

Genus

Red Yellow White Blue Orange Green / Brown

3 or 6 petals 4 petals 5 irregular petals 5 symmetrical petals (ovary superior) 5 symmetrical petals (ovary inferior) 5 irregular petals forming a tube 5 symmetrical petals forming a tube 5 petals joined into a bell

All composites Anthemis tribe Aster tribe Chicory tribe Thistle tribe Thoroughwort tribe Sunflower tribe Everlasting tribe Senecio tribe

Many petals No obvious petals

January February March April May June July August September October November

Wildflowers of the Pacific Northwest

Trees & Shrubs of the Pacific Northwest

Weeds of the Pacific Northwest

Eastern Washington and Oregon in Bloom

Western Washington and Oregon in Bloom

Turner Photographics - Wildflowers

Browse Plants by Genus: Centaurea

Centaurea biebersteinii

Centaurea biebersteinii

Spotted Knapweed

Aster

Centaurea cyanus

Centaurea cyanus

Bachelor's Button

Aster

Centaurea diffusa

Centaurea diffusa

Diffuse Knapweed

Aster

Centaurea solstitialis

Centaurea solstitialis

Yellow Starthistle

Aster