N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22º15'35''N, 105º31'17''E at elevation
800-900 m a.s.l. Remnants of primary broad-leaved evergreen closed wet forest on very steep slopes and cliffs of rocky ridges and mesae composed with solid marble-like stratified limestone. Terrestrial herb on open short tall secondary grassland. Flowers yellow. Common.
Record creation: 2026-03-11, Galina Savich, PhotoScan D2Citation: Specimen LE 01317364 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01317364