Warning: the answer isn't very exciting, but I thought I'd give a little botany quiz a whirl.
For a start they are all of the Fabaceae family of plants, which generally speaking means they are nitrogen fixing beany/pea-y plants (which gets explained further in the graphic below).
But wait ... there is another characteristic they share ... *secret squirrel* all shall be revealed in the next post. What can it be?!
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| Clover |
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| Sweet Pea |
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| Common Vetch |
Fabaceae
