What is "five-leaf"

Usage examples of "five-leaf".

The packed, even sand gave way to a line of tumbled larger shells just beyond the high-tide line: clam halves ranging from several inches across down to half-inch coquinas, broken red and white conches with the inner spirals exposed, bleached sand-dollars decorated with five-leaf clover designs.

Beneath them she found small woven pouches containing flower petals or juniper berries, and beneath these but terwort, betony, and mint leaves, the bundled stalks of tansy and five-leafed silverweed, as well as lavender so fragile that it crumbled at a touch.