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Stricly speaking, this group is used here for kales with flat leaves. According to languages, names may include other types of kale, which are detailed under [[Common names: Brassica oleracea Medullosa Group|Medullosa Group]], [[Common names: Brassica oleracea Palmifolia Group|Palmifolia Group]], [[Common names: Brassica oleracea Ramosa Group|Ramosa Group]], [[Common names: Brassica oleracea Sabellica Group|Sabellica Group]], [[Common names: Brassica oleracea Selenisia Group|Selenisia Group]]. As names often apply to particular types grown locally in only one or a few countries, translation si difficult and approximate.

Kales which don't form a trunk are grown for Human human consumption above all in southern USA, and called collards, or spring greens in the UK. In French, they are known as collard or chou à rosette (Canada), or chou rosette (in france (France, Vilmorin-Andrieux).