FLORA OF VIETNAM
Costaceae
Costus tonkinensis Gagnep.

Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, environs of Mo O O O village, around point 17°40′03.6”N 105°55′08.5”E.

Dense broad-leaved closed forest along highly eroded rocky limestone ridge at elevation about 500 m a.s.l.

Terrestrial herb to 2 tall on rocky slope. Flowers light yellow. Not common.

CPC 3918 29 July 2011
Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Vinh.