spartrifoli fu'ivla

s1 is a clover/trefoil (genus Trifolium) of species/strain/cultivar s2.

Shamrock (=citno spartrifoli;sparcemro). Four-leaf clover (=pezvonmei/fungau spartrifoli).

In notes:

jgenrtrefoili
x1 is a trefoil knot (shape/object) with characteristics x2
trifoli
x1 is a clover, Trifolium of species x2