Bueno, V. R., Cassol, A. P. V., Leroy, C. J., Bueno, M. L., & Heiden, G. (2023).
Calea
× crassa
(Neurolaeneae: Asteraceae), a new nothospecies from Paraná state, Brazil.
Phytotaxa
,
618
(2), 133–148. https://doi.org/10.11646/phytotaxa.618.2.3