In the New World, Pteridium aquilinum in the strict sense occurs nearly throughout the United States and southern Canada, with extensions northward to about 55° N Latitude. The species is distributed southward through the mountains of Mexico into Central America as far as Honduras. It is also present in the Caribbean Islands and one subspecies is endemic to Hawaii. In the Old World, P. aquilinum occurs nearly throughout Europe (north to near the Arctic Circle) and Africa (excluding the Saharan portion), is present on a number of islands, including Madagascar, Réunion, the Mascarenes, Mauritius, and Macaronesia. Its Asian distribution extends eastward across Russia and south through China and Indochina into Malaysia. Farther south in both the Old and New Worlds, other species of Pteridium replace P. aquilinum, but there is distributional overlap between P. aquilinum and the other taxa, mainly in Latin America and portions of Asia.
No one has provided updates yet.