FLORA OF VIETNAM
Lamiaceae
Plectranthus amboinicus (Lour.) Spreng.

N. Vietnam, Thai Nguyen prov., Vo Nhai distr., Than Sa municipality,
vicinities of Kim Son village (N 21°48′ E 105°54′), 23.3 km to 18° of
Thai Nguyen city. Primary dry broadleaved evergreen forest on very
steep rocky slopes of remnant karst limestone ridge at elev. about 300
m a.s.l. Lithophytic forb up to 1 m hg on open rocks. Flowers
blue-violet. Very common, especially on open rocks on tops of ridge
after fire.

NTH 3849 24 Oct. 1999

Collectors: N.T. Hiep, P.K. Loc, L. Averyanov.