Quang Tri Prov., Huong Hoa Distr., Huong Viet municipality around point 16°51’06”N 106°34’38”E. Partially destroyed primary broadleaved evergreen forest on very steep rocky slopes of remnant hills composed with solid highly eroded crystalline limestone at elev. about 600-700 m a.s.l. Woody vine to 10 m long on shady rocky slope. Flowers brightly red, anther dull yellow. Not common.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360665 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360665