the root (no rank)
Eukaryota (domain)
Viridiplantae (kingdom)
Embryophyta (phylum)
Magnoliophyta (subphylum)
Liliopsida (class)
Dioscoreales (order)
Dioscoreaceae (family)
Dioscorea (genus)
Dioscorea polystachya (species)
[hide inferior taxa]