FLORA OF LAOS Convallariaceae Tupistra orlovii Aver., N. Tanaka & K. S. Nguyen, sp.nov.
Bolikhamsai prov., Thaphabat distr., Nam Bon village, Phou Khao Khouay national park, Tad Xai Waterfall, around point 18°27′25.9′'N 103°08′17.5′'E.
Degraded primary and secondary evergreen dry forest along river on eroded sandstone at elev. About 340 m a.s.l.
Lithophytic and occasionally terrestrial large herb on shady mossy boulders and river cliffs. Leaves uniform green, fruits glossy green. Rare, but locally abundant.