Mexican yam
- kingdom: Plantae
- phylum: Tracheophyta
- class: Liliopsida
- order: Dioscoreales
- family: Dioscoreaceae
- genus: Dioscorea
- species: Dioscorea mexicana
Berlín- Santiago de María
Usulután
El Salvador
Bergshamra- Djursholm
Stockholm- Göteborg
Västra Götaland
Sweden