Fourleaf clover. Macrophotograph of a fourleaf clover Trifolium sp. . Fourleaf clovers, which are far less common than threeleaf clovers, are seen as a sign of good luck in some cultures. Editorial Stock Photo - Afloimages
Four-leaf clover. Macrophotograph of a four-leaf clover (Trifolium sp. ). Four-leaf clovers, which are far less common than three-leaf clovers, are seen as a sign of good luck in some cultures.