[Buckwheats: The Genus Eriogonum East of the Cascade Mountains of Oregon and Washington] - [Eriogonum umbellatum East of the Cascade Mts. of Oregon and Washington]

Modoc sulphur flower as seen at the western base of FS Road #4215 in Antler Prairie, Ochoco National Forest...........May 27, 2016.

Modoc sulphur flower blooming atop the Hart Mountain ridgeline just northeast of the head of the North Fork DeGarmo Canyon, Hart Mountain National Antelope Refuge........June 9, 2016.....Or does the photo at right represent var. nevadense with flower cluster branches greater than 2.5 cm?

Modoc sulfur flower buckwheat as seen along the Steins Pillar Trail #837, Ochoco National Forest..........June 26, 2017.

Modoc sulfur flower buckwheat observed along FS Road 3910 about one mile north of the Californica border, Mt. Bidwell Recreation Area, Fremont-Winema National Forest.......July 31, 2020. Note: There's a possibility that this could be variety nevadense which is also in the area. They are very close in appearance with the latter having less tomentose lower leaf surfaces.

Modoc sulfur flower buckwheat as seen along the Rimrock Springs Trail #850, Crooked River National Grasslands.......June 24, 2017.

Modoc sulfur flower buckwheat observed on scablands along Forest Road 30 near the old Cold Springs Guard Station, southeastern corner of Big Summit Prairie, Ochoco National Forest.........June 3, 2018.

Modoc sulfur flower buckwheat blooming in scablands along Forest Road 3915 in the Bald Hills, Fremont-Winema National Forest......June 30, 2019.

Modoc sulphur flower buckwheat observed atop Light Peak, Fremont-Winema National Forest......June 29, 2019.

Modoc sulphur flower buckwheat atop Hager Mountain, Fremont-Winema National Forest.......June 18, 2020.

Modoc sulphur flower buckwheat at the summit of Crane Mountain, Fremont-Winema National Forest........August 1, 2020.

Modoc sulfur flower buckwheat as seen atop Pine Mountain, Deschutes National Forest..........July 12, 2017.