an eastern tiger swallowtail feeding on a purple butterfly bush

arthropoda backyard beautiful benefitial birdwing buddleja buddlejeae bush butterfly close colorful cultivar eastern environment feeding flower food garden glaucus insect invasive lepidoptera linnaeus michigan nature nectar ornithoptera papilio papilionidae plant pollen pollenator purple scrophulariaceae shrub southeastern swallowtail tiger weed yellow billspenglerphotography