Quang Binh Prov., Minh Hoa Distr., Dan Hoa Municipality, Bai Dinh village around point 17°45’28”N 105°46’14”E. Remnants of primary evergreen broad-leaved forest along rocky stream canyon composed with highly eroded marble-like solid limestone at elevation about 160-250 m a.s.l. Undershrub to 1.5 m tall in shady place along rocky stream valley. Flowers blue. Not common.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360749 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360749