Actinocephalus polyanthus
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Eriocaulaceae
- genus: Actinocephalus
- species: Actinocephalus polyanthus
Passa Quatro
Minas GeraisCampo Largo
Ponta Grossa
ParanáTorres
Rio Grande do SulLages
Santa Catarina
Brazil