FLORA OF LAOS Zingiberaceae Etlingera yunnanensis (T. L. Wu & S. J. Chen) R. M. Smith?
Vientiane prov., Kasi distr., between San and Tham Tai villages, around point 19°17′47.9′'N 102°08′58.9′'E.
Secondary broad-leaved evergreen dry forest on very steep rocky mountain slopes composed by solid marble like highly eroded limestone at elev. 900-1000 m a.s.l.
Terrestrial herb to 2.5 m tall on steep, rather open rocky slope. Inflorescence bracts purple. Not rare.