Threadleaf Crowfoot, Water Buttercup, White Water Buttercup
Ranunculus aquatilis var. diffusus
Synonyms: Ranunculus aquatilis var. capillaceus, Ranunculus aquatilis var. porteri, Ranunculus longirostris, Ranunculus subrigidus, Ranunclus trichophyllus
White water buttercup as seen in a shallow pond near Grayback Mt. Road in the Klickitat Wildlife Area.........April 26, 2016. The leaf divisions are all narrow.
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White water buttercup (var. diffusus) observed in a vernal stream running uphill to the WSW of Dead Canyon, about 2 miles or so west of the Klickitat River......May 9, 2025. Note the numerous, thin leaflets. There are a few leafy stems of water montia (Montia chamissoi) rising out of the mass of white buttercup leaves in the image at left.
The photo above shows white water buttercup as seen in a creek
along the south loop road on the Steens Mt. of southeastern Oregon..........June
20, 2004.
Paul Slichter