Potentilla angelliae is a rare species of flowering plant in the rose family known by the common names Angell cinquefoil and Boulder Mountain cinquefoil. It is endemic to Utah in the United States, where it is known only from Boulder Mountain on the Aquarius Plateau.^[1]

Potentilla angelliae
Conservation status
Critically Imperiled  (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Potentilla
Species:	P. angelliae
Binomial name
Potentilla angelliae N.H.Holmgren

This plant was first described in 1987.^[2] 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.^[1]

There are five known occurrences of this plant, with an estimated total of 19,000 individuals. The plants grow in a rocky subalpine meadow at an elevation of 11,000 feet. Other plants in the habitat include its close relative, Potentilla concinna.^[1]