I think the leafs of the Brassica oleracea plants have the most variation. Shape is the main variation between all of the Brassica oleracea leafs. Some of the leafs are large with rounded edges, while others have very ridged edges. Differences in color are also shown. For example, kohlrabi has green leafs with bright purple stems and at the end of the stem is a large baseball sized vegetable. Another form of Brassica oleracea called red anchor cabbage has big oval shaped purple leafs. And lastly one of the forms has green leafs very similar to kohlrabi but the stem is a light green color rather than purple. I think the kohlrabi and the red anchor cabbage display the most differences, between the kohlrabi being very tall with green leafs and bright purple stems and the cabbage being very small with all purple leafs these two plants while from the same species show how small changes in genetics can affect the plants and help them to survive.
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| Red Anchor Cabbage |
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| Kohlrabi |
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