Kham Mouan Prov., Bounlapha Distr., Thong Sam village, Hinnam No Protected Area, Pu Pha Song Mt. composed by sandstone, around point 17°35′13.2”N 105°47′49.8”E.
Primary evergreen broad-leaved and mixed forest on W macroslope at elevation from 500 m to the mountain top elevated to 1425 m.
Terrestrial rhizomatous herb in shady place along stream at elevation 1100 m., inflorescence about 60 cm long, stalk uniformly dark olive green, spathe pale green with olive-brown apex. Common.