Malvaceae A number of species, including "Hibiscus syriacus", "Hibiscus rosa-sinensis" and "Alcea rosea" are garden plants. Malvaceae Malvaceae, or the mallows, is a family of flowering plants estimated to contain 244 genera with 4225 known species. Well-known members of economic importance include okra, cotton, cacao and durian. There are also some genera containing familiar ornamentals, such as "Alcea" (hollyhock), "Malva" (mallow) and "Lavatera" (tree mallow). The largest genera in terms of number of species include "Hibiscus" (300 species), "Sterculia" (250 species), "Dombeya" (250 species), "Pavonia" (200 species) and "Sida" (200 species). The circumscription of the Malvaceae is controversial. The traditional Malvaceae
Rhodopetala rosea solely on shell characteristics), Lindberg proposed the creation of a new subfamily within the Acmaeidae to be called "Rhodopetaleinae" with this species as its only member. It is distinguished from the other subfamilies of this family by its helcioniform rather than conical shell, a silvery metallic luster in its central area rather than a porcelaneous quality, and the presence of a rudimentary gill lacking ctenidial structures. It is the combination of the shell structure (patellid) and anatomy (acmaeid) which suggest this is an intermediary group between the acmaeid and cellanid limpets. Rhodopetala rosea Rhodopetala rosea, common name the pink limpet,