White-stemmed Milkweed, Whitestem Milkweed
Asclepias albicans
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White-stemmed milkweed blooming in Fish Creek Wash several miles upstream from Split Mountain Canyon, Anza-Borrego Desert State Park......March 26, 2010.
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White-stemmed milkweed blooming near Indian Hill in Indian Valley, northwest of Octillo, CA in Anza-Borrego Desert State Park.....March 21, 2005.
Paul Slichter