Alcea "Alcea" species are used as food plants by the larvae of some Lepidoptera species including "Bucculatrix quadrigemina" and "Vanessa cardui", the painted lady. The mallow flea beetle ("Podagrica fuscicornis") is a pest that makes tiny holes in the leaves. Cutworms, aphids, and capsid bugs use the plant as a food source in hotter and drier conditions. A number of weevils use "A. rosea" as their host plant, including "Rhopalapion longirostre", "Alocentron curvirostre", and "Aspidapion validum". The plants are also susceptible to the pathogenic fungus "Puccinia malvacearum", the hollyhock rust. A hollyhock flower, known in Japan as , was incorporated into
Coreopsis rosea Coreopsis rosea Coreopsis rosea is a North American species of "tickseeds" in sunflower family. It has a discontinuous distribution in the eastern United States and Canada, found in Nova Scotia, Massachusetts, Rhode Island, New York, New Jersey, Pennsylvania, Delaware, Maryland, Georgia, and South Carolina. "Coreopsis rosea" grows in wet areas such as marsh edges. Unlike most "Coreopsis" species, the ray florets are pink or white (instead of yellow). The only other "Coreopsis" species with pink rays is "C. nudata"; "C. rosea" does not seem to be closely related to "Coreopsis" species which merely have red dots at the base of