Potentilla sericoleuca

Potentilla sericoleuca, commonly known as Plumas mousetail and Plumas ivesia, is a species of flowering plant in the rose family.

Distribution
The plant is endemic to eastern California, in the Northern Sierra Nevada and onto the southern Modoc Plateau.

It grows at elevations of 1300 - 2320 m, in sagebrush scrub, yellow pine forest meadows, and freshwater wetland−riparian habitats.

Description
Potentilla sericoleuca is a small perennial herb forming a tuft on the ground. Each leaf is a flat to cylindrical strip of many hairy green leaflets, each individual leaflet 3 to 15 millimeters long and each whole leaf 10 to 20 centimeters long. The mostly naked stem is erect or drooping and reaches a maximum height or length of about 45 cm.

It bears an inflorescence of several clusters of hairy flowers. Each flower is just over a centimeter wide, with triangular reddish-green or yellowish sepals and round to spoon-shaped white petals. In the center of the flower are usually 20 stamens and several pistils.