FLORA OF VIETNAM
Acanthaceae Quang Binh Prov., Minh Hoa Distr., Dan Hoa Municipality, Bai Dinh village around point 17°45′28”N 105°46′14”E.

Remnants of primary evergreen broad-leaved forest along rocky stream canyon composed with highly eroded marble-like solid limestone at elevation about 160-250 m a.s.l.

Terrestrial and lithophytic herb to 0.5 m tall in wet shady place. Not common.

HAL 12308 6 February 2009
Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, L.T.Son.