N. Viet Nam, Lao Cai Prov., Van Ban Distr., Nam Xe Municipality, Khau Co Pass. Secondary vegetation just E of Pass elevating from 1150 to 1200 m on granite substrate around point 22°02′35″N, 103°57′23″E. Frequent in open places among grasses. Plants all green; calyx red to brown; petals white to light purple-pink on lobes; lower petal light purple, streaked in deep purple.
27 February 2001. Collectors: D.K. Harder, N.T. Hiep, L.V. Averyanov, N.Q. Hieu, DKH 6999. Det.: L. Averyanov, Aug. 2002.