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.
27 February 2001. Collectors: D.K. Harder, N.T. Hiep, L.V. Averyanov, N.Q. Hieu, DKH 6999a. Det.: L. Averyanov, Aug. 2002.