Alcea three centimeters wide and may be pink, white, purple, or yellow. The fruit is a schizocarp, a dry disc divided into over 15 sections that contain seeds. There are about 60 species of "Alcea", including: Hollyhocks are popular garden ornamental plants. They are easily grown from seed. Breeds with red flowers attract hummingbirds and butterflies. Cultivars have been bred, especially from "A. rosea". They include the double-flowered 'Chater's Double', the raspberry-colored 'Creme de Cassis', and 'The Watchman', which has dark, nearly black, maroon flowers. The stems of hollyhocks can be used as firewood, and the roots have been used medicinally.
Canavalia rosea buoyancy of the seeds allows them to be distributed by ocean currents. The plant seems to contain L-Betonicine. "C. rosea" inhabits upper beaches, cliffs, and dunes throughout the world's coastal tropics. It is highly salt-tolerant and prefers sandy soils. Canavalia rosea Canavalia rosea is a species of flowering plant of the genus "Canavalia" in the pea family, Fabaceae, that has a pantropical distribution. Common names include beach bean, bay bean, seaside jack-bean, coastal jack-bean, and MacKenzie bean. Coastal jack-bean is a trailing, herbaceous vine that forms mats of foliage. Stems reach a length of more than and in thickness. Each