FLORA OF VIETNAM Polypodiaceae s.l. Pteridium aquilinum
N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Co Muoi, vicinities of Lung Dat village (N 22°51′ E 106°14′), about 22 km from Cao Bang town to the N. Primary mixed semideciduous forest (with Pseudotsuga brevifolia) along tops of limestone ridge at 900-1000 m alt. Terrestrial fern with vine fronds up to 3 m lg in open places. Dominante plant in open slopes and cliffs in secondary plant communities (especially after fire).
CBL 1119 12 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)