Bueno, Vinicius R., Ana P. V. Cassol, Carolina J. Leroy, Marcelo L. Bueno, and Gustavo Heiden. 2023. “Calea × Crassa (Neurolaeneae: Asteraceae), a New Nothospecies from Paraná State, Brazil”. Phytotaxa 618 (2). Auckland, New Zealand:133-48. https://doi.org/10.11646/phytotaxa.618.2.3.