Son La Prov., Van Ho Distr., Van Ho comm., Hua Tat village, around point 20°46′21.7N 104°47′47.5E. Remnants of primary evergreen broad-leaved and mixed forest (with Pinus wangii) on very steep rocky slopes and on mountain tops composed with highly eroded karstic light gray marble-like limestone at elevation 1300-1350 m a.s.l. Terrestrial herb to 1.5 m tall on very steep rocky shady slope. Flowers dark violet, fruits green. Not common. 2 October 2016 CPC 8218 Coll.: L.Averyanov, N.T.Hiep, N.S.Khang, C.Q.Ngan, T.V.Maisak, N.T.Son.
Coordinates (geographic position):20° 46′ 21.7″ N, 104° 47′ 47.5″ E ±1000 mRecord creation: 2021-11-09, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01077362 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077362