FLORA OF VIETNAM
Zingiberaceae
Kaempferia rotunda L.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, about 1000 m a.s.l., alluvial agricultural slopes of karstic, highly eroded mountains composed of solid marble-like limestone. Terrestrial herb on secondary grassland near crop fields. Flowers light violet. Common aboriginal weed. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 331 (HN, LE01050160).