FLORA OF VIETNAM
Gesneriaceae
Rhynchothecum sp.?

Cao Bang Prov., Thong Nong Distr., Yen Son Municipality, Nhieu Lung village, around point 22°46′07.9″N, 105°53′59.4″E.

Primary fractionaly logged coniferous forest with Pseudotsuga sinensis along highly eroded rocky limestone ridge at elevation 1150-1250 m a.s.l.

Terrestrial and lithophytic herb to 0.5 m tall in shady humid place in rocky valley. Flowers violet. Occasional.

8 October 2013 CPC 5471
L.Averyanov, N.T.Hiep, L.M.Tuan, N.S.Khang, T.Maisak, L.Osinovets