Begoniaceae

Begonia hemsleyana Hook.f.

Ha Giang prov., Quan Ba distr., Tung Vai commune, Thung Pang village, around point 23º04ʹ28.9ʺN 104º55ʹ32.0ʺE, steep rocky slope to large deep cave composed with highly eroded marble-like white limestone at elevation 900–1000 m a.s.l. Secondary evergreen broad-leaved very humid forest with bamboo. Lithophytic and terrestrial herb to 1 m tall on rocky steep slope. Leaves uniform green, petioles red. Flowers pink, anthers yellow. Not rare. 17 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 939.