Polymnia -- "leafcup". A biennial, meaning that it takes two years to complete its life-cycle. Flowers form on two-year-old plants. This flower has a stripe-legged insect cavorting across its margin.
Daucus carota -- "Queen Ann's lace." Also note the killer hemipteran.
Ruellia carolinensis -- "Carolina wild petunia." Not a true petunia at all, but the name has stuck.