Meyen's flatsedge
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Poales
- family: Cyperaceae
- genus: Cyperus
- species: Cyperus meyenianus
Nova Viçosa
Bahia- Caxias do Sul
- Farroupilha
- Tramandaí
Rio Grande do Sul- Parati
Rio de Janeiro
Brazil
Bennekom- Wageningen
Gelderland
Netherlands
Honoka‘a- Princeville
Hawaii
United States