This section is from the book "Field Book Of Western Wild Flowers", by Margaret Armstrong. Also available from Amazon: Field Book Of Western Wild Flowers.
The foliage of this plant is a lovely shade of silvery gray, which suits the yellow flowers. It has several stoutish, reddish, stems, a foot to a foot and a half tall, springing from clumps of leaves, with long leaf-stalks and five to seven leaflets. The bright-yellow flowers are each three-quarters of an inch across and the whole plant is conspicuously covered with long, thick, white, silky down, particularly on the under side of the leaves.

Silky Cinque-foil-Potentilla pectinisecta.
 
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