FLORA OF VIETNAM
Gesneriaceae
Herita sp.

N.Vietnam, Cao Bang Prov., Trung Khanh Distr., Ngoc Khe Municipality, Pac Nga village, around point 22°54′59′'N, 106°31′44′'E, at elevation 800-850 m a.s.l.

Remnants of primary broad-leaved evergreen and coniferous forest along rocky tops of rocky ridges and mesae composed with light gray solid marble-like highly eroded crystalline limestone.

Lithophytic herb on vertical cliff of N exposition. Flowers blue. Rare.

HAL 5630 11 June 2004

Collectors: L.Averyanov, P.K.Loc, P.V.The, N.T.Vinh.