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 December

Turner Photographics - Wildflowers

Acroptilon repens (Centaurea repens)

Acroptilon repens (Centaurea repens)

ID: 0406501
Russian Knapweed
Benton Co. Midway Rd near Vernita bridge, WA
May 30, 2004
Copyright © 2004, Mark Turner