FLORA OF VIETNAM Zingiberaceae Kaempferia rotunda L.
Son La Prov., Van Ho Distr., Tan Xuan comm., A Lay village, around point 20°40′46.2N 104°39′49.6E.
Primary evergreen broad-leaved forest on very steep rocky slopes and on mountain tops composed with red-brown sandstone at elevation about 1500 m a.s.l.
Terrestrial tuberiferous herb in shady place. Young leaves dull violet below, mature leaves green with pinnate white marks above. Rare, but in large groups.