They favor anywhere pipevine (Aristolochia) can grow in abundance.

Host plants and food resources

Larvae

Pipevine swallowtail larvae feed on plants within the genus Aristolochia. These are commonly known as pipevine plants, which is where the butterfly gets its common name. This plant genus is known to have active aristolochic acids, which pipevine swallowtail larvae sequester and use for defensive

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