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
Tabebuia rosea Tabebuia rosea Tabebuia rosea, also called pink poui, and rosy trumpet tree is a neotropical tree that grows up to and can reach a diameter at breast height of up to . The name Roble de Sabana, meaning "savannah oak", is widely used in Costa Rica in Spanish, probably because it often remains in heavily deforested areas, where people appreciate its intense flowering periods and because of the resemblance of its wood to that of oak trees. It is the national tree of El Salvador, where it is called "Maquilíshuat". This species is distributed from southern México, to Venezuela and