lesser yellow trefoil

NOUN
21 LETTERS · STARTS WITH L

lesser yellow trefoil is a valid 21-letter word worth 28 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
L1E1S1S1E1R1Y4E1L1L1O1W4T1R1E1F4O1I1L1
1 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 4 + 1 + 1 + 1 =28 PTS
DOUBLE WORD → 56TRIPLE WORD → 84
MEANING

What does lesser yellow trefoil mean?

NOUN · 1 SENSE
1

Clover native to Ireland with yellowish flowers; often considered the true or original shamrock.