Geranium carolinianum is a species of geranium known by the common name Carolina crane's-bill, or Carolina geranium. It is native to North America, where it is widespread and grows in many types of habitat. This is an annual herb reaching just over half a meter in maximum height. It has erect stems covered in spiky hairs. The palmate leaves are several centimeters wide and divided into usually five segments which are each subdivided into elegantly pointed lobes. The inflorescence is a cluster of one to several small flowers. Each flower has five pointed sepals and five notched petals in shades of white to lavender. The fruit has a hairy body and a style up to 1.5 centimeters long.