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
Acis rosea (flower stalks) are short, 1–5 mm long. There are two spathes. "Acis rosea" was first described in 1804 by F. Martin, as "Leucojum roseum". In 1829, Robert Sweet transferred it to "Acis". However, "Acis" was not accepted by most botanists, who continued to use a broadly circumscribed "Leucojum". "Acis" was reinstated in 2004, after it was determined on morphological and molecular grounds that the broadly defined genus "Leucojum" was paraphyletic. "Acis rosea" is native to the two western Mediterranean islands of Corsica and Sardinia. It is found in rocky ground, dry pastures and sandy places. "Acis rosea" is cultivated as