Cauliflower is one of several vegetables cultivated from the species Brassica oleracea in the genus Brassica, which is in the Brassicaceae family.
Cauliflower, cultivar unknown
Cauliflower plants growing in a nursery
White and green cauliflower
Green Romanesco cauliflower
Brassica oleracea is a plant species from family Brassicaceae that includes many common cultivars used as vegetables, such as cabbage, broccoli, cauliflower, kale, Brussels sprouts, collard greens, Savoy cabbage, kohlrabi, and gai lan.
Brassica oleracea
Head of B. oleracea Botrytis group (cauliflower) growing
Couve Galega (ex. Brassica oleracea var. acephala DC.) for the Portuguese Caldo verde
Jersey cabbage can be cultivated to grow quite large, especially in frost-free climates.