Alcea rosea that some closely related species ("Althaea rugosa" and "Althaea ficifolia") are resistant to this fungus. In herbal medicine, Hollyhock is believed to be an emollient and laxative. It is used to control inflammation, to stop bedwetting and as a mouthwash in cases of bleeding gums. Alcea rosea Alcea rosea, the common hollyhock, is an ornamental plant in the family Malvaceae. It was imported into Europe from southwestern China during, or possibly before, the 15th century. William Turner, a herbalist of the time, gave it the name "holyoke" from which the English name derives. "Alcea rosea" is variously described as a
Tabebuia rosea disorders. Among the various active phytochemicals in the tree is lapachol, a natural organic compound isolated from various other "Tabebuia" species. Chemically, it is a derivative of naphthoquinone, related to vitamin K. Once studied as a possible treatment for some types of cancer, lapachol's potential is now considered low due to its toxic side effects. Lapachol also has antimalarial and antipanasomal effects. 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