FLORA OF VIETNAM Begoniaceae Begonia hemsleyana Hook.f.
Son La Prov., Van Ho Distr., Tan Xuan Municipality, Cot Moc village, territory of Xuan Nha natural reserve, eastern slopes of Pha Luong Mountain.
Remnants of primary and secondary broad-leaved evergreen humid forest on very steep mountain slopes composed by shale and sandstone at elevation about 900-1450 m a.s.l. around point 20°40′33.3″N 104°39′00.3″E.
Lithophytic herb on large mossy stream boulders along narrow shady rocky stream canyon. Flowers pink, anthers and stigmas yellow. Common.