creeping European clover having white to pink flowers and bright green leaves; naturalized in United States; widely grown for forage
"After years of neglect, the once-thought-dead patch of shamrock returned, its bright green leaves carpeting the field as a lush source of forage."
Eurasian plant with heart-shaped trifoliate leaves and white purple-veined flowers
"The gardener carefully transplanted the delicate shamrock, admiring its heart-shaped trifoliate leaves and the cluster of small white flowers with purple veins blooming above them."
clover native to Ireland with yellowish flowers; often considered the true or original shamrock
"The ancient guidebook describes the local wild shamrock as a clover native to Ireland with delicate yellowish flowers, distinguishing it from the more common green variety."
The trefoil leaf of any small clover, especially Trifolium repens, or such a leaf from a clover-like plant, commonly used as a symbol of Ireland.
"He tucked a fresh green shamrock behind his ear while celebrating St. Patrick's Day in Dublin."