Vientiane Prov., Vang Vieng Distr., Nathong village, about 5 km to the W of Vang Vieng town around point 18°55′34.2”N 102°22′58.4”E.
Dry broad-leaved secondary evergreen forest on very steep rocky slopes and on vertical cliffs of remnant highly eroded rocky limestone mountains composed by solid crystalline limestone at elevation about 300 m.
Palm-like plant on shady rocky very steep slope. Stem 5 m tall, leaves 2.5 m long. Female specimen. Seeds ovoid, slightly flattened, 5-6 cm long, 4-5 cm in diam. Sterile specimen common, fertile samples very rare.