FLORA OF VIETNAM
Lamiaceae
Isodon lophanthoides var. graciliflorus (Benth.) H. Hara

Ha Giang Prov., Quan Ba Distr., Tung Vai Commune, Thang Village, around point 23.05349°N 104.86446°E, steep rocky slopes of river valley composed with eroded limestone mixed with sandstone at elevation 1000–1100 m a.s.l. Terrestrial herb in open grassy place along trail. Flowers white. Common weed. 7 October 2019, L. Averyanov, Nguyen Sinh Khang, T. Maisak, VR 1413 (HN, LE01061109, LE01067007). Det.: Chen Yaping 30.11.2019.