Potentilla villosa

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Potentilla villosa
Villous Cinquefoil (3818560466).jpg

Secure (NatureServe)
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Potentilla
Species: P. villosa
Binomial name
Potentilla villosa
Pallas ex. Pursh

Potentilla villosa is a species of flowering plant in the rose family, Rosaceae. Its common names include villous cinquefoil,[1] northern cinquefoil,[2] and hairy cinquefoil.[3] It is native to northwestern North America, where its distribution extends from Alaska to Alberta to Oregon.[2][4] There are records from eastern Asia.[5]

Habitat and ecology[edit]

This is a coastal plant.[6] It occurs on coastal bluffs and beaches, and in meadows,[5] tundra, and alpine talus.[7]


This is a rhizomatous perennial herb with a tuft of several hairy to woolly stems growing from a thick base covered in previous seasons' dead foliage. The stems are up to 20[7] to 30[5] centimeters tall. The thick, leathery basal leaves are compound, divided into three veiny, toothed leaflets with woolly to silky-haired undersides. There may be a few leaves higher on the stem which are nearly the same size. The inflorescence bears one to five flowers. The flower has a five-lobed calyx and five bractlets at the base. The bowl-shaped corolla has five notched yellow petals each up to 1.2 centimeters long.[5] Each petal is marked with an orange basal spot.[3] There are usually 20 stamens at the center.[5] Flowering occurs in July through September.[7] The fruit is an achene, borne in clusters.[5]


  1. ^ "Potentilla villosa". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 13 October 2015. 
  2. ^ a b Potentilla villosa. NatureServe. 2012.
  3. ^ a b Potentilla villosa. Lady Bird Johnson Wildflower Center. University of Texas at Austin.
  4. ^ Potentilla villosa. USDA PLANTS.
  5. ^ a b c d e f Potentilla villosa. In: Klinkenberg, B. (Ed.) 2013. E-Flora BC: Electronic Atlas of the Plants of British Columbia. University of British Columbia, Vancouver.
  6. ^ Elven, R. and D. F. Murray. The Potentilla villosa-uniflora group in northwestern North America. Botanical Electronic News 390. The University of Oklahoma. 12 March 2008.
  7. ^ a b c Potentilla villosa. Burke Museum. University of Washington.