[Potentilla gracilis] -- [Cinquefoils: The Genera Comarum, Dasiphora, Drymocallis and Potentilla East of the Cascade Mountains of Oregon and Washington]
Fan-shaped Cinquefoil, Fan-leaved Cinquefoil, Idaho Cinquefoil, Slender Cinquefoil
Potentilla gracilis var. flabelliformis
Synonym: Potentilla flabelliformis
Fan-leaved cinquefoil as seen along the valley trail about three-quarters of a mile northwest and uphill from the Painted Rocks trailhead, Little Spokane River Natural Area.........July 5, 2011.
Fan-leaved cinquefoil as seen at left in open forest atop Kamiak Butte, Kamiak Butte County Park, Whitman County, Washington.......June 11, 2013. Fan-leaved cinquefoil blooming along the Stubblefield Trail, Turnbull National Wildlife Refuge.......July 4, 2018.
The photo above shows the upper surface of the leaf blade of fan-shaped cinquefoil as seen in grasslands at MP 7.0 along the Hat Pt. Road, Hell's Canyon National Recreation Area.........June 26, 2007. Notice that the leaflets are dissected more than 2/3 of the way in to the midstem, and that they are dark green above.
The photo above shows a close-up of the underside
of the leaf of fan-shaped cinquefoil. Notice the white-tomentose covering of hairs on the underside of the leaf. Photographed at MP 7.0 along the Hat Pt. Road, Hell's Canyon NRA.........June 26, 2007.
Dorsal (left) and ventral (right) leaf surfaces of fan-shaped cinquefoil as seen in the vernally moist meadows of Logan Valley to the northwest of Big Creek Campground, Malheur National Forest.........July 2, 2010. This specimen approaches var. elmeri due to its somewhat grayish upper leaves, but is not densely gray hairy to warrant it being identified as Elmer's cinquefoil.
Dorsal leaf surface (left) and ventral leaf surface (right) of graceful cinquefoil (I had originally identified these as Potentilla blaschkeana, but the leaflet divisions are pretty long.) as seen in coniferous woods along the Little Spokane River downstream of the Painted Rocks.......June 19, 2009.
Close-ups of the dorsal leaf surface, ventral surface of a leaflet and two habitat views of slender cinquefoil as seen on disturbed soils at the northeastern base of Steptoe Butte in eastern Washington.......June 22, 2009.
Upper and lower leaf surfaces of fan-shaped cinquefoil as seen at Camas Lands NAP to the southeast of Leavenworth, Washington.........June 5, 2015.