Northern Vietnam, Ninh Binh Prov., Nho Quan Distr., Cuc Phuong Municipality, Cuc Phuong National Park, Dang locality, about 1 km WNW of Dang forest Control point, 20°16′28′'N, 105°40′57′'. Secondary closed evergreen seasonal broad-leaved lowland forest on limestone hills at elev. 300-350 m a.s.l. Terrestrial herb up to 40 cm tall on steep shady slope. Flowers white, stamens and stigma yellow, ovary pink. Leaves deep green sometimes with small white sparse spots above, light green to brown-pink with reddish-pink nerves below. Very common.