FLORA OF VIETNAM
Apocinaceae

N. Vietnam, Hoa Binh prov., Mai Chau distr., Hang Kia municipality,
near Pa Khong village, (20°44′40′'N, 104°52′32′'E). Primary
broad-leaved evergreen dry forest with Pinus kwangtungensis along tops
of highly eroded remnant karst limestone ridge at elev. 1300-1440 m
a.s.l. Shrub about 1 m hg with milky juice. Flowers buds white with
pink tint. Rare.

HAL 808 9 April 2001

Collectors: N.T.Hiep, L.Averyanov, N.T.Vinh, D.T.Doan.