Luang Prabang prov., Pon Xay distr., Houay Man village, Phou Pak Sang Mountain, around point 19°59'03.8''N 102°25'09.0''E.
Degraded primary evergreen and semideciduous forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 1000-1150 m a.s.l. Ephemeroid tuberiferous herb with leafless inflorescence to 0.5 m tall on rocky slope near mountain top. Spathe white with pink apex. Peduncle olive with whitish spots. Rare.