N. Vietnam, Ha Giang prov., Meo Vac distr., vicinities of Meo Vac town (N 23°10′ E 105°24′), 48.2 km to 36° of Ha Giang city. Secondary open shrubs and grasslands sandstone hill slopes at elev. 1200-1300 m a.s.l. Terrestrial forb up to 0.5 m hg in open place. Flowers yellow. Common.
NTH 3443 07 Oct. 1999 Det Sven Landrein 21/02/2005
Collectors: N.T. Hiep, N.Q. Binh, L. Averyanov, P. Cribb.