Eastern swallowtail caterpillars are green with large yellow and black decoy ... Eastern, western and Canadian tiger swallowtail butterflies look almost identical, but the latter two are smaller.

they turn green and blend in among leaves. 'A defence reflex also helps at this stage: when they are touched they arch their backs and send two red horns protruding from their heads. 'A foul smell is ...

Its feathery foliage and yellow-green flowers ... the Eastern Tiger Swallowtail. Its vibrant flowers are a rich nectar source, and its foliage supports a range of caterpillars.