The Irish consider various tripartite clover leaves (such as the one in the photo here) to be "shamrocks." As I relate in my article on shamrocks and four leaf clovers, the tradition behind the shamrock is quite distinct from that behind four leaf clovers.
Clover Leaf Photo
Four Leaf Clovers and Shamrocks
While many consider clover a "weed," there's really nothing wrong with having a little clover mixed into your lawn....
Photo of red clover leaf.
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