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

Jackson County, Oregon

March 15, 2011

Arroyo Willow, photographed along Bear Creek near Central Point, Oregon.

Arroyo Willow male catkins detail

Arroyo Willow male catkins extreme detail

Arroyo Willow male catkins extreme detail

Arroyo Willow (male) along Bear Creek