The scientific name of the black swallowtail is Papilio polyxenes. Papilio is from the Latin for butterfly and the specific epithet polyxenes is from...
I forgot to say that the genus Crotalus comes from the Greek krotalon or krotos for rattle or rattling. (A couple favorite native plants...
There are around 30 species of Porophyllum, the majority of which are found in Mexico and southward. Around me in the borderlands of Arizona...