Vascular Plants - Rosaceae - Potentilla:
Potentilla flabellifolia
Page Author: David Giblin
high mountain cinquefoil, fan-foil 
Blooms: June-August
Habit: herb
Duration: perennial
Origin: Native
Conservation Status: Abundant; of no concern.

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California and Nevada, east to Alberta, Montana and Wyoming.
Habitat: Common in moist meadows, mid- to high elevations in the mountains.
Species Description:

General: Perennial from a branched base and well-developed rhizomes, moderately puberulent but green throughout, the stems 1.5-2.5 dm. tall.
Leaves: Basal leaves numerous, long-petiolate, the blades ternate, the leaflets obovate, deeply toothed, the teeth rounded; stipules membranous, ovate, 5-15 mm. long; cauline leaves 1-2, reduced.
Flowers: Inflorescence open, few-flowered, leafy-bracteate; calyx saucer-shaped, 1-1.5 cm. broad, the 5 lobes deltoid-lanceolate, the alternating bracteoles slightly shorter, elliptic, toothed; petals 5, bright yellow, obcordate, up to 10 mm. long; stamens 20, inserted just outside a blackish-purple disk; pistils numerous; style slender, sub-terminal, longer than the achene.
Fruits: Achene 1.5 mm. long, smooth.
Accepted Name:
Potentilla flabellifolia Hook. ex Torr. & Gray
Synonyms:
(none)

Treated in Flora of the PNW as:
Potentilla flabellifolia
Additional Resources:

PNW Herbaria Specimens: View list of all Potentilla flabellifolia specimens in the Consortium of Pacific Northwest Herbaria database.

WTU Herbarium Specimens: View list of Potentilla flabellifolia specimens in the WTU Herbarium database.

Washington Flora Checklist: Potentilla flabellifolia treatment.

E-Flora BC: Potentilla flabellifolia atlas page.

CalPhotos: Potentilla flabellifolia images.

USDA Plants Database: Potentilla flabellifolia.
Additional photographs of Potentilla flabellifolia:
(click on a thumbnail to view larger photo)

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Ben Legler, 2004

Bud Kovalchik

Tim Hagan, 2002

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

G. D. Carr, 2008

Douglas Houck, 2009

Douglas Houck, 2009

Douglas Houck, 2009

Douglas Houck, 2009

Ron Bockelman, 2012

Ron Bockelman, 2012

Ron Bockelman, 2012

Ron Bockelman, 2012

Ray Izumi, 2012

Ray Izumi, 2012

Ray Izumi, 2012

Ray Izumi, 2010

Ray Izumi, 2010

Ray Izumi, 2010

Ray Izumi, 2010

Ray Izumi, 2010

Ray Izumi, 2009

Ray Izumi, 2009

Ray Izumi, 2010

Ray Izumi, 2010

Susan McDougall, 2004

Ben Legler, 2012

Douglas Houck, 2012

Susan McDougall, 2013

Susan McDougall, 2009

Susan McDougall, 2015

Susan McDougall, 2014

Susan McDougall, 2014
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Washington Native Plant Society
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