FLORA OF VIETNAM Begoniaceae Begonia tetragona (female samples)
N. Vietnam, Hoa Binh prov., Da Bac distr., 4-6 km to the N of Doan Ket village, Phu Canh mountain system (20°55′48′'N, 105°02′52′'E). Primary wet broad-leaved evergreen closed mountain forest on sandstone and shale with quartzite at elev. 800-1000 m a.s.l. Terrestrial herb up to 1.5 m hg in open wet place. Flowers white, stigma yellow. Leaves pure green above, with purple veins below. Locally abundant.