Eriogonum umbellatum (Sulphur Buckwheat)

8/14/04 South Lake Road, Inyo National Forest, Eastern Sierra, Inyo County, CA

7/10/07 Virginia Lakes, Toiyabe National Forest, Eastern Sierra, Mono County, CA
 
7/7/05 McGee Creek Canyon Trail, Inyo National Forest, Eastern Sierra, Mono County, CA

 7/2/16 Trail to Horseshoe Meadow, 10,000' elevation, Lone Pine Region,

Eastern Sierra, Inyo National Forest, Inyo County, CA

7/3/05 County Road 73 to Big Sage Reservoir, Devil's Garden Natural Area, 
Modoc National Forest, Modoc County, CA

 7/7/07 West Walker Trail from Leavitt Trail, off Hwy. 108, Toiyable National Forest,
Sierra Nevada, Mono County, CA

7/7/07 West Walker Trail

 8/15/04 Little Lakes Valley Trailhead, Rock Creek, Eastern Sierra, Mono County, CA

7/6/02 Mammoth Lakes Scenic Loop at Inyo Craters turnoff, 
Eastern Sierra, Mono County, CA

7/3/16 South Lake Road, south of Bishop Creek Lodge, Eastern Sierra,
Inyo National Forest, Inyo County, CA 

7/3/16 South Lake Road, south of Bishop Creek Lodge, Eastern Sierra,
Inyo National Forest, Inyo County, CA 

7/4/16 Lower elevations of Rock Creek Road, Inyo National Forest,
Eastern Sierra, Mono County, CA

7/5/16 Parker Lake trailhead, Parker Lake Road off June Lake Loop (SR 158),
Eastern Sierra, Mono County, CA

7/8/16 Virginia Lakes, Toiyabe National Forest, Eastern Sierra, Mono County, CA

7/8/16 Dunderberg Meadow Road, Toiyabe National Forest, 
Eastern Sierra, Mono County CA

LIFE LIST NOTES:

COMMON NAME: Sulphur Buckwheat

SPECIES: Eriogonum umbellatum

FAMILY: Polygonaceae (Buckwheat Family)

LIFE LIST DATE: 7/6/2002

LOCATION: Mammoth Lakes Scenic Loop at Inyo Craters turnoff, Eastern Sierra, Mono County, CA

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Treatment from The Jepson Manual (1993):

Group 3] Perennial to shrub, 10–200 cm, 10–200 cm diam

Leaves clustered on low stems; blade 3–40 mm, generally ± elliptic, generally densely tomentose (especially below)

Inflorescence umbel- to head-like, erect, slender; bracts leaf-like, subtending rays (if ray 1, appearing whorled near mid-axis), rarely alternate on main axis); involucre generally 1 per ray, 1–6 mm, ± tomentose, lobes 6–12, long, reflexed

Flower: perianth 2.5–12 mm, generally ± yellow becoming reddish (cream to purple), glabrous, lobes ± obovate, stalk-like base long, distinct

Fruit 2–5 mm, glabrous

Ecology: Abundant. Dry, open, often rocky places

Elevation: 200–3700 m.  

Bioregional distribution: California (except North Coast, Great Central Valley, Central Coast, South Coast, Channel Islands, Sonoran Desert)  

Distribution outside California: to w Canada, Colorado, New Mexico

Extremely variable and difficult. Many vars. intergrade, best dispositions unclear; more study needed.