Tag Archives: Potentilla uliginosa

Potentilla uliginosa B. C. Johnst. & Ertter

Cunningham Marsh Cinquefoil (Potentilla uliginosa 

The Cunningham Marsh Cinquefoil, formerly included in another species, Hickman’s Cinquefoil (Potentilla hickmanii Eastw.) (see photo), was described as a distinct species only in 2010.

This species was apparently restricted to Cunningham Marsh in Sonoma County, California, USA but appears to be extinct now. [1]



[1] Barry C. Johnston; Barbara Ertter: Potentilla uliginosa (Rosaceae: Rosoideae) a new presumed extinct species from Sonoma County, California. Journal of the Botanical Research Institute of Texas 4(1): 13-18. 2010


Hickman’s Cinquefoil (Potentilla hickmanii Eastw.)

Photo: John Game

(under creative commons license (2.0))


edited: 20.09.2020