N.Vietnam, Bac Kan Prov., Cho Don Distr., Ban Thi Municipality, village Phia Khao, around point 22є15'35''N, 105є31'17''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. Tree 6-8 m tall. Flowers white, anthers yellow. Common.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360710 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360710