FLORA OF VIETNAM
Gesneriaceae
Lysionotus oblongifolius W.T. Wang

Ha Giang Prov., Quan Ba Distr., Cao Ma Po Commune, Then Van 1 Village, around point 23.11410°N 104.84506°E steep rocky slopes composed with highly eroded limestone at elevation 1600–1700 m a.s.l. Primary evergreen broad-leaved and coniferous very humid forest. Terrestrial or lithophytic herb on very steep rocky slope. Flowers light blue-violet. Not rare. 5 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1366 (HN, LE01061136).