Dien Bien Prov., Tua Chua Distr., Tua Thang Municipality, De Chu village, around point 21°53′22”N 103°24′56”E.
Secondary open evergreen broadleaved forest on alluvial slopes between remnant mountains composed with solid limestone at elevation about 900 m a.s.l. near village.
Terrestrial herb to 0.5 m tall along road cut. Flowers yellow. Common.
CPC 2278 12 April 2011 Coll.: L.Averyanov, P.K.Loc, N.Q.Hieu, N.T.Vinh.