a variation/mutation of the common clover, rare and said to bring good luck
4-leaf white clover (Trifolium repens L.) The four-leaf clover is a rare mutation of the common three-leaf clover that has four leaflets instead of three. According to tradition, such clovers bring good luck, a belief that dates back to at least the 17th century.
The term four-leaf is botanically a misnomer, as clover plants have multiple leaves (multiple clovers), each consisting of a varying number of leaflets, typically three.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).