[Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest]

California Thistle, Bigelow Thistle, Cobwebby Thistle

Cirsium occidentale var. californicum

Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest - Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest

Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest - Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest

Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest - Thistles: The Genus Cirsium in the Mountains and Deserts of the American Southwest

California thistle observed along the trail in Borrego Palm Canyon, Anza-Borrego Desert State Park, CA......April 1, 2006.
Paul Slichter