[Buttercups: The Genus Ranunculus in the Columbia River
Gorge of Oregon and Washington]
Undescribed Buttercup
Ranunculus glaberrimus var. ?
or a hybrid between R. triternatus and Ranunculus glaberrimus ?
![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/CanyonCrkButtercup03-21-2014b.jpg)
A voucher specimen of an undescribed buttercup as seen in the Klickitat Wildlife Area..........March 21, 2014.
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- ![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/CanyonCrkButtercup03-21-2014d.jpg)
- ![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/CanyonCrkButtercup03-21-2014f.jpg)
An undescribed buttercup as seen in the Klickitat Wildlife Area......March 21, 2014.
![Flower and nectary of Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/ranunculusreconditus1a.jpg)
A close-up of the petals of the mystery buttercup. Note the shallowly notched nectary.
- ![Petal and nectary of](hybrid/ranunculusreconditus2c.jpg)
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.
![Flower size of Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/ranunculusreconditus1b.jpg)
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.
- ![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/ranunculusreconditus1e.jpg)
Note the trifoliate leaves as well as the glabrous leaves and stems. Each leaflet is shallowly to deeply 3-lobed or parted.
![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/ranunculusreconditus1c.jpg)
![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/ranunculusreconditus2a.jpg)
- ![Sagebrush Buttercup: Ranunculus glaberrimus](../../../../basin/5petal/butter/ran/glaberrimus/glaberrimus6a.jpg)
Comparison photos to the Dalles Mt. buttercup (Ranunculus triternatus - left) and sagebrush buttercup (Ranunculus glaberrimus - right).
- ![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/buttercup03-01-2015b.jpg)
- ![Mystery Buttercup possibly Ranunculus trisectus formerly Ranunculus reconditus or a hybrid between R. trisectus and Ranunculus glaberrimus ?](hybrid/buttercup03-01-2015d.jpg)
An undescribed buttercup as seen in the Klickitat Wildlife Area.......March 1, 2015.
Paul Slichter