Its major food plants are members of the carrot family, Apiaceae, (including fennel), and also some members of the citrus family, Rutaceae.
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Its body is somewhat shorter than the rather similar Western Tiger Swallowtail, with which its range overlaps; it also lacks the black stripes, converging toward the tail, of the latter.
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The usual range of the Anise Swallowtail extends from British Columbia and North Dakota at its northern extreme, south to the Baja California peninsula and other parts of Mexico.
Papilio ulysses | Papilio machaon | Papilio | Papilio rutulus | Papilio rex | Papilio ophidicephalus | Papilio glaucus | Papilio cyproeofila | Papilio xuthus | Papilio polyxenes | Papilio polytes | Papilio mayo | Papilio homerus | Papilio gallienus | Papilio erithonioides | Papilio echerioides | Papilio demoleus | Papilio canadensis | Papilio appalachiensis | Papilio antimachus | Papilio alexanor |