Asclepias californica

Asclepias californica (commonly known as the California milkweed) is a species of milkweed plant.  It is also known as Round-hooded milkweed. It belongs in the subfamily Asclepiadoideae.  It is native to California and Baja California.  It blooms from April to July.  This species is found on grassy or bushy hillsides.

Other websites

Asclepias californica at USDA PLANTS Database
Asclepias californica at Treatment from the Jepson Manual

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