Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Comm., Ban On Vill., Con Moong mt. (about 1 km N on walking trail from Ban On to Thuong Hoa), 17°40′59″N, 105°57′56″E, 250-280 m.
In heavily logged primary and secondary closed evergreen broad-leaved forests and woodlands on foot and lower part of slopes of limestone mts.
Lithophyte on vertical cliffs. Perennial herb, up to 0.25-0.4 m tall; leaves ca. 14 x 0.4 cm. Rather cmmon.