[Buttercups: The Genus Ranunculus East of the Cascade Mountains of Oregon and Washington]

Sagebrush Buttercup, Wax Buttercup

Ranunculus glaberrimus var. glaberrimus

Synonym: Ranunculus glaberrimus var. typicus

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo above shows sagebrush buttercup as seen from Quilomene Wildlife Area to the west of Vantage, WA.........March 29, 2007.

Close-up of the flower of Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)The photo at right shows a close-up of the flower of sagebrush buttercup (R. glaberrimus var. glaberrimus) as seen on BLM lands in Cowiche Canyon, to the west of Yakima, WA.............March 28, 2007.
Characteristics:

Sagebrush buttercup is a perennial with several erect to prostrate stems. The stems are 5-20 cm long and may be simple to branched above. The leaves are mainly basal. The blades are somewhat fleshy, elliptic to obovate (sometimes nearly round) in shape with margins ranging from entire to deeply 3-lobed at the distal end. The leaf blade tapers gradually to the petiole which may be as long as to several times longer than the blade. One to several stem leaves may be present.

The flowers are shiny yellow, with 5 petals 8-15 mm long. The 5 sepals are spreading, and purplish-tinged, 5-8 mm long. 40-80 stamens occupy the centeral of the floral disk.

This is an attractive, large-flowered buttercup that would be attractive in the wild prairie garden. I don't believe that anyone offers this plant at wildflower nurseries at this time.


Habitat:

Sagebrush buttercup is found in ponderosa pine woodlands and in the sagebrush desert. Variety ellipticus is primarily montane, while variety glaberrimus is a plant of lower elevation.


Range:

Sagebrush buttercup is a widespread species, found from British Columbia south along the eastern edge of the Cascades and Sierra Nevada Mts. to central California, and eastward across Oregon and Washington to the Dakotas, and south to New Mexico.


Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo above shows sage-brush buttercup as seen along the Deschutes River Access Road several miles below Sherar's Bridge in north-central Oregon..........March 24, 2007.

Underside of the flower of Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo at right shows a close-up of the underside of the flower of sagebrush buttercup (R. glaberrimus var. glaberrimus) as seen on BLM lands in Cowiche Canyon, to the west of Yakima, WA.............March 28, 2007. Note the brownish (although usually greenish) sepals.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercups blooming along Oregon Highway 218 about one mile south of Shaniko, Oregon..........March 10, 2015.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercups blooming on rocky rims at the edges of scablands near FS Road 4230-050 south of Long Prairie, Ochoco National Forest........April 30, 2016.

Ranunculus glaberrimus var. ellipticus from Winter Ridge, Fremont N.F.......May 26, 1996.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo above shows a close-up of the flower of sagebrush buttercup as seen from open woods near Hog Lake, to the east of Sprague, WA..........April 29, 2006.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo at left shows sagebrush buttercup (R. glaberrimus var. glaberrimus) as seen along the Vantage Highway west of Vantage, WA, in the Quilomene Wildlife Area.........May 29, 2007. The photo at right shows sagebrush buttercup blooming along Forest Road 2630 about a half mile uphill to the northwest of Scotts Campground, Ochoco National Forest.........May 10, 2017.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercup (R. glaberrimus var. glaberrimus) as seen along the Line Butte Trail #807 about a quarter mile uphill from the Fawn Creek Trailhead on the southeastern corner of Lookout Mountain, Ochoco National Forest.........May 22, 2017.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

The photo above shows a close-up two flowers of sagebrush buttercup (R. glaberrimus var. glaberrimus) as seen on BLM lands in Cowiche Canyon, to the west of Yakima, WA.........March 28, 2007.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercup as seen along the Round Mountain South Trail #805 near the summit of Round Mt., Ochoco National Forest.........May 28, 2016.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercup as seen on scablands atop Lookout Mountain, Ochoco National Forest.........May 29, 2016. This looks somewhat like var. ellipticus, but some of the leaves have 3 shallow lobes at the tip.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus) - Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercup blooming on balds along the main east-west access road through the Bickleton Ridge Unit of the Klickitat Wildlife Area.........April 11, 2017.

Sagebrush Buttercup, Wax Buttercup: Ranunculus glaberrimus var. glaberrimus (Synonym: Ranunculus glaberrimus var. typicus)

Sagebrush buttercup as seen along Trail #201 just west of its junction with Trail #368, Strawberry Mountain Wilderness..........July 1, 2010.

Paul Slichter