SCHWARTSBURD, P. B.; 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, Auckland, New Zealand, v. 333, n. 1, p. 22–40, 2018. DOI: 10.11646/phytotaxa.333.1.2. Disponível em: https://phytotaxa.mapress.com/pt/article/view/phytotaxa.333.1.2. Acesso em: 5 dec. 2025.