N. Vietnam, Son La prov., Moc Chau distr., Van Ho municipality, near Hua Tat village (20°46′13′'N, 104°46′12′'E). Primary broad-leaved evergreen closed wet forest along remnant limestone highly eroded ridge at elev. 1100-1300 m a.s.l. Terrestrial and lithophytic herb on steep shady wet slope. Spathe deep emerald-green, inflorescence axis green, flowers male dirty-violet, female - green, unpleasant smelled. Petiole and inflorescence stalk brown-green with light green/deep brown marks. Not common.