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
Rhodiola rosea and 4 petals, yellow to greenish yellow in color sometimes tipped with red, about long, and blooming in summer. Several shoots growing from the same thick root may reach in height. "R. rosea" is dioecious – having separate female and male plants. "Rhodiola rosea" was first described by Pedanius Dioscorides in De Materia Medica. Western North American plants formerly included in "R. rosea" are now treated as "Rhodiola integrifolia" and "Rhodiola rhodantha". About 140 chemical compounds are in the subterranean portions of "R. rosea". "Rhodiola" roots contain phenols, rosavin, rosin, rosarin, organic acids, terpenoids, phenolic acids and their derivatives, flavonoids,