[The Buttercups of the Columbia River
Gorge of Oregon and Washington]
Ranunculus glaberrimus var. ?
or a hybrid between R. triternatus and Ranunculus glaberrimus ?
A voucher specimen of an undescribed buttercup as seen in the Klickitat Wildlife Area..........March 21, 2014.
An undescribed buttercup as seen in the Klickitat Wildlife Area..........March 21, 2014.
A close-up of the petals of the mystery buttercup. Note the shallowly notched nectary.
Close-ups of the maturing achenes as well as a petal. Note the deeply grooved nectary at the base (upper portion of the petal). Photographed April 23, 2009.
A close-up of the underside of the flower of this mystery buttercup. Note the large size of the flower where the petals can measure over 10 mm in length.
Note the trifoliate leaves as well as the glabrous leaves and stems. Each leaflet is shallowly to deeply 3-lobed or parted.
Comparison photos to the Dalles Mt. buttercup (Ranunculus triternatus - left) and sagebrush buttercup (Ranunculus glaberrimus - right). Click each photo to see an enlarged view (2x).
An undescribed buttercup as seen in the Klickitat Wildlife Area..........March 1, 2015.