FLORA OF VIETNAM Araceae Amorphophallus coaetaneus Liu & Wei
Hoa Binh Prov., Lac Son Distr., Tu Do Municipality, Mon village, around point 20°24′52”N 105°19′41”E.
Secondary evergreen dry broad-leaved forest on steep rocky slopes of remnant mountain composed with highly eroded marble-like solid crystalline limestone at elevation about 300 m a.s.l.
Terrestrial ephemeroid herb on rocky shady slope. Spathe light greenish, male flowers dull yellowish, female flowers green. Locally common.