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

Toxicodendron diversilobum

Poison Oak blossoms & foliage

ID: 0402821
Poison Oak blossoms & foliage
Josephine Co. Rogue R Tr, OR
April 13, 2004
Copyright © 2004, Mark Turner
More Info
Toxicodendron diversilobum (Poison-Oak)