Clover

Clover is a type of plant common to the United States, and is also found in virtually every part of the world. While hundreds of species exist, clovers share a relatively similar appearance. Most contain three round green leaves, and a small upright flower. In the Eastern United States, this flower is typically white, while Western/Midwest U.S. varieties may be purple, red, or pink, among other colors.

While typical clovers contain three leaves, some contain four. It is unknown why some clovers contain more than three leaves. Even rarer than four-leaf clovers are clovers with five, six, or even more leaves. Four-leaf clovers are considered lucky to some.