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