Vientiane Prov., Vang Vieng Distr., Phoudindeng village, 1-2 5 km to the E of Vang Vieng town around point 18°57′48.7”N 102°27′34.0”E.
Dry broad-leaved secondary evergreen forest with bamboo on low hills composed by shale at elevation about 400 m.
Terrestrial herb in shady slope. Flowers purple-violet, leaves pure green or green with white sparse spots, below green or purple-violet. Locally common.