Persicaria ferruginea
- kingdom: Plantae
- phylum: Tracheophyta
- class: Magnoliopsida
- order: Caryophyllales
- family: Polygonaceae
- genus: Persicaria
- species: Persicaria ferruginea
- Santa Inês
Maranhão- Iguape
- Piracicaba
São Paulo
Brazil- Caucasia
Antioquia
Colombia- Pinar del Río
Pinar del Río
Cuba- Ypacarai
Central
Paraguay