Son La Prov., Thuan Chau Distr., Phong Lai Comm., Phieng Long Village, foots of Pha Din pass areas, remnants of primary evergreen broad-leaved forests on limestone mountains, elev. 800-1000 m a.s.l. Lithophytic perennial herbs, flowers brownish white with 3 pale purple stripes on each sepal. Not very common.
Record creation: 2023-07-07, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01124251 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01124251