1. (clover native to Ireland with yellowish flowers
often considered the true or original shamrock)
koniczyna drobnogłówkowa
synonim: shamrock
synonim: lesser yellow trefoil
synonim: Trifolium dubium

2. (prostrate European herb with small yellow flowers and curved black pods
naturalized in North America)
lucerna nerkowata: : synonim: black medick
synonim: yellow trefoil
synonim: nonesuch clover
synonim: Medicago lupulina