Vietnam, Nghe An Prov., Tuong Duong Distr., Tam Quang Municipality, Tung Huong village, along Khe Mat stream around point 19°03'09"N 104°36'53"E at elevation about 355 m a.s.l. Lowland closed secondary old evergreen forest on steep slopes along rocky stream valley composed with stratified solid shale and sandstone. Terrestrial herb up to 0.5 m tall along steep rocky shady stream slopes. Common. HLF 6693 18 March 2007. Coll. Averyanov L., P.K.Loc, N.V.Trai, N.T.Vinh, N.D.Phuong, Averyanova A. Grant from Henry Luce Foundation.
Coordinates (geographic position):19° 3′ 9″ N, 104° 36′ 53″ E ±1000 mRecord creation: 2019-02-22, Leonid Averyanov, PhotoScan D1Citation: Specimen LE 01048432 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01048432