Schwartsburd PB, Yañez A, Prado J.

Formal recognition of six subordinate taxa within the South American bracken fern, Pteridium esculentum (P. esculentum subsp. arachnoideum s.l.—Dennstaedtiaceae), based on morphology and geography

. Phytotaxa [Internet]. 2018 Jan. 5 [cited 2025 Dec. 5];333(1):22–40. Available from: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.333.1.2