Lai Chau Prov., Sin Ho Distr., Xa De Phin Mun., Mao Xa Phin vill., around point 22?18′49′' N, 103?15′18′' E, 1828 m. Upper slopes and ridges and peaks of limestone mountains.
Annual ? herb; clustered in soil pockets on rocks. Flowers violet-blue, turning white. HAL 8726 08 Jun 2006 Photos Collectors: P.K. Loc, N.T. Vinh, N.S. Khang, P.N. Quan and T.A. Suu
Collected with the financial support from the Program of Basic Researchs in Life Sciences, Vietnam.