N.Vietnam, Bac Kan Prov., Na Ri Distr., Liem Thuy Municipality, Na Bo village, around point 21°56′44′'N, 106°05′09′'E, at elevation 300-600 m a.s.l.
Primary selectly logged broad-leaved evergreen forest on very steep slopes and cliffs of rocky ridge composed with white solid marble-like crystalline limestone.
Terrestrial and lithophytic herb. Spate light green with deep green apex and middle transversal deep brown stripe. Petiole and stalk white with green tint. Very common.