Schwartsburd, P.B., de Moraes, P.L.R. & Lopes-Mattos, K.L.B. (2014)

Recognition of two morpho-types in eastern South American brackens (Pteridium—Dennstaedtiaceae—Polypodiopsida)

. Phytotaxa 170 (2): 103–117. https://doi.org/10.11646/phytotaxa.170.2.3