FLORA OF VIETNAM
Acanthaceae
Hygrophila sp.

Det. Dr Kaj Vollesen 26.10.2004

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. Shrublet up to 1 m hg on open rocks and cliffs. Flowers
greenish-white, lip with purple marks. Not rare.

NTH 3832 24 Oct. 1999

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