Houphan Prov., Hem Distr., Na Puok village, Pu Tham Nhon mountain around point 20°10'00.0''N 103°24'37.0''E.
Primary and secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble-like highly eroded limestone at elev. 1050-1150 m a.s.l.
Lithophytic herb on mossy rocka on mountain top. Flowers pale yellowish, lip side lobes dull purple. Very common. LA-VN 1294 11 April 2015
Record creation: 2021-01-06, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01088836 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01088836