The Acephala group of cultivars for the species Brassica oleracea includes:
- curly kale
- American English collard greens, or collard
- U.K. English spring greens
- decorative kale, or ornamental kale
- flowering kale
- flowering cabbage, or ornamental cabbage
- Jersey longjacks cabbage, or walking-stick cabbage, or cow cabbage, or Jersey French ''grand chou à vacque'', or ''chour'', or longjacks, or tree cabbage, or Jersey kale
- Scotch kale
The Acephala means "no head" as the plants have leaves with no central head; the opposite arrangement of white cabbage, or Savoy cabbage.
Each cultivar has a different genome owing to mutation, evolution, the ecological niche, and intentional plant-breeding by man.
- ^ RHS Plant Finder. Web. https://www.rhs.org.uk Accessed: 2014-11-25.
- ^ https://www.bio.cmu.edu/. Courses: "Genome evolution and mutation". Web. Accessed: 2014-11-25.