Cao Bang Prov., Bao Lac Distr., Hong An municipality, Mi Lung village. Primary broad-leaved and mixed humid evergreen forest on very steep slopes and along rocky ridge composed with solid crystalline highly eroded limestone at elevation 1500-1550 m a.s.l. around point 22°50’01.3’’N 105°50’05.7’’E. Lithophytic herb on open mossy boulders. Flowers blue. Common.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360677 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360677