Oregon State University. Extension Service; Roche, Cindy Talbott; White, G. R. (George Randolph), 1958- (Corvallis, Or. : Extension Service, Oregon State University, 2000-02)
In the heat of summer in the Rogue Valley, yellow starthistle (Centaurea solstitialis) raises heads of brilliant yellow flowers rigidly defended by sharp spines. Although bees reap double benefits of nectar and pollen du ...