The fringed gentian, Gentianopsis thermalis, grows in meadows, bogs, and on moist ground. This species prefers growing in warm places and it’s common near geysers and hot springs in Yellowstone National Park. It is the official flower of the park.

This plant grows to a height of 4-16 inches and blooms in May through August. This annual has purple flowers 1.5-3 inches in length. The showy flowers are fringed along the edges.

Fringed gentians can be found across northern Canada and south through the Rocky Mountains and into parts of New Mexico, Utah, and Nevada.

Native Americans used gentians to treat headaches and as an antidote to witchcraft.

Fun fact: The flowers curl up and close on cloudy days leaving just the tops visible. The closed flowers resemble a small windmill.