shamrocks
sham-rocks
noun
Small, three-leaved clover plants, symbolic of Ireland and St Patrick's Day.
"People often wear shamrocks to celebrate St Patrick's Day."
Thesaurus
Synonyms: lesser yellow trefoil, Trifolium dubium, hop clover, Oxalis acetosella, cuckoo bread, common wood sorrel, white clover, dutch clover, Trifolium repens