yam
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Dioscoreales
- family: Dioscoreaceae
- genus: Dioscorea
- species: Dioscorea convolvulacea
San Rafael
AlajuelaTurrialba
CartagoBagaces
GuanacasteColón
La Asunción
San Antonio
Ángeles
Heredia
Costa RicaPointe-à-Pitre
Guadeloupe
GuadeloupeSan José
Petén
GuatemalaHuitziltepec
Petaquillas
GuerreroOrizaba
Veracruz
Mexico