FLORA OF VIETNAM
Lamiaceae

N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Quang Vinh
(N 22°48′ E 106°17′), about 16 km from Cao Bang town to the N.
Secondary open broadleaved forest and shrubs on alluvial valley
between remnant limestone ridges at 600-650 m alt. Terrestrial herb up
to 1.5 m hg in open place. Flowers violet. Common weed all over the
area.

CBL 1109 11 Dec. 1998

International Botanical Expedition of the U.S.A. National Geographic
Society (grant No 6300-98)

Collectors: Averyanov L., N.Q.Binh, N.T.Hiep, P.K.Loc, N.X.Tam.