California milkweed, Asclepias californica
States grown: CA
California milkweed grows in lower northern California, central and southern California as well as into northern Baja California. It is an important monarch butterfly caterpillar host plant. It is a perennial and has thick wooly stems that are low to the ground and bending upwards.
View California milkweed observations on iNaturalist
View California milkweed plant information at Wildflower.org
View California milkweed plant information at Plants.USDA.gov