Clover with four leaflets in globe cover photo - 12363661

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Shamrock, the traditional Irish symbol coined by Saint Patrick for the Holy Trinity, is commonly associated with clover, though sometimes with Oxalis species, which are also trifoliate (i.e., they have three leaves). Clovers occasionally have leaves with four leaflets, instead of the usual three. These four-leaf clovers, like other rarities, are considered lucky. Clovers can also have five, six, or more leaves, but these are more rare. The most ever recorded is twenty-one, a record set in June 2008 by the same man who held the prior record and the current Guinness World Record of eighteen. Unofficial claims of discovery have ranged as high as twenty-seven. The cloverleaf interchange is named for the resemblance to the leaves of a (four-leafed) clover when viewed from the air Clovers are a valuable survival food, as they are high in protein, widespread, and abundant. They are not easy to digest raw, but this can be easily fixed by juicing them or boiling them for 5â€“10 minutes. Dried flower heads and seedpods can also be ground up into a nutritious flour and mixed with other foods. Dried flower heads can also be steeped in hot water for a healthful, tasty tea.