Lemon mint (Monara citriodora), also called purple horse mint or lemon beebalm, is, as the names imply, a member of the mint family (Lamiaceae), which has a citrus smell when crushed, reminiscent of the fruit of the actual lemon plant, and which has purple flowers that prove irresistible to both bees and hummingbirds. Sometimes, especially late in the season, the odor is described as resembling oregano more than lemon.