Potentilla angelliae is a rare species of flowering plant in the rose family

Rosaceae

Rosaceae are a medium-sized family of flowering plants, including about 2830 species in 95 genera. The name is derived from the type genus Rosa. Among the largest genera are Alchemilla , Sorbus , Crataegus , Cotoneaster , and Rubus...

 known by the common names Angell cinquefoil and Boulder Mountain cinquefoil. It is endemic to Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

 in the United States, where it is known only from Boulder Mountain

Boulder Mountain (Utah)

Boulder Mountain in Utah, USA makes up half of the Aquarius Plateau of South Central Utah in Wayne and Garfield counties. The mountain rises to the west of Capitol Reef National Park and consists of steep slopes and cliffs with over 50,000 acres of rolling forest and meadowlands on the top...

 on the Aquarius Plateau

Aquarius Plateau

The Aquarius Plateau is a physiographic region within Garfield and Wayne counties in south-central Utah. The plateau, an uplift on the much larger Colorado Plateau, is the highest in North America...

.

This plant was first described in 1987. It is a perennial herb with spreading or prostrate stems up to 11 centimeters long. Each leaf is divided into a few lobed or toothed leaflets. Yellow flowers bloom in July.

There are five known occurrences of this plant, with an estimated total of 19,000 individuals. The plants grow in a rocky subalpine

Subalpine

The subalpine zone is the biotic zone immediately below tree line around the world. Species that occur in this zone depend on the location of the zone on the Earth, for example, Snow Gum in Australia, or Subalpine Larch, Mountain Hemlock and Subalpine Fir in western North America.Trees in the...

 meadow at an elevation

Elevation

The elevation of a geographic location is its height above a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface ....

 of 11,000 feet. Other plants in the habitat include its close relative, Potentilla concinna.