Aristolochia californica
California Dutchman's Pipe, California Pipevine

A twining vine with bright green, heart-shaped leaves. Odd, flared flowers in pale brown with dark purple venation resemble old-fashioned smoking pipes. Native to riparian zones across California. It is the only food source for the California pipevine swallowtail butterfly. Can tolerate full shade.

USDA zones: 8 - 10
Sunset zones: 5 - 10, 14 - 24
Mature size: climbing 8 - 16 feet
Light needs: partial shade
Water needs: regular to ample water