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Meeting a living caterpillar changes how a person sees the natural world. Our education program places California pipevine swallowtail caterpillars, one of Northern California's most striking native butterflies, into the care of classrooms, museums, libraries, and community groups, together with a short presentation and everything needed to raise them. Participants watch the caterpillars feed, form a chrysalis, and in season emerge as adults before release. It is native-butte

UC Berkeley's voluntary pipevine replanting plan for the Clean Energy Campus project has real gaps: transplant timing, excavation scope, and feasible alternatives it never analyzed.

The California pipevine swallowtail (Battus philenor hirsuta) depends entirely on California pipevine. Its biology, caterpillars, range, and threatened UC Berkeley habitat.

The California pipevine (Aristolochia californica) is the sole host plant of the pipevine swallowtail butterfly. Its ecology, flowers, range, and why it matters at UC Berkeley.