Linked from
The 19 pages that link to Brassica oleracea, each with the reason it gives.
CabbageNarrower topic: Cabbage is one cultivated form of this highly diverse species.
BroccoliNarrower topic: Broccoli is one of this species’ cultivated forms.
KaleNarrower topic: Kale is one cultivated form of this diverse species.
Brussels sproutsNarrower topic: Brussels sprouts are one cultivated form of this species.
CauliflowerNarrower topic: Cauliflower is one cultivated form of this highly diverse species.
KohlrabiNarrower topic: Kohlrabi is one cultivated form of this highly diverse species.
Collard greensNarrower topic: Collards are a leafy cultivar group within this species.
Savoy cabbageNarrower topic: Savoy cabbage is one cultivated form of this highly diverse species.