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Eriogonum lobbii

Torr. & Gray

Lobb's Buckwheat

G4Apparently Secure (G4G5) Found in 64 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.140096
Element CodePDPGN083N3
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygonales
FamilyPolygonaceae
GenusEriogonum
Synonyms
Eriogonum lobbii var. lobbii
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Taxonomic Comments
This record is for Eriogonum lobbii in the narrow sense, not including E. robustum, following Flora of North America Editorial Committee (2005).
Conservation Status
Rank MethodLegacy Rank calculation - Biotics v1
Review Date2019-07-17
Change Date2019-07-17
Edition Date2019-07-17
Edition AuthorsTomaino, A. (2019)
Threat ImpactLow
Range Extent20,000-2,500,000 square km (about 8000-1,000,000 square miles)
Number of Occurrences81 - 300
Rank Reasons
Known from mountain ranges of southwestern Oregon and northern California, and eastern California and western-central Nevada. Threats appear to be low.
Range Extent Comments
"Found in three widely scattered areas of concentration: the high mountains of northwestern California and southwestern Oregon; the southern portion of the North Coast Range of California; and the Sierra Nevada of eastern California and west-central Nevada" (Flora of North America Editorial Committee 2005).
Occurrences Comments
There are approximately 8 occurrences in Oregon (NatureServe Network Database as of July 2019). Based on specimen data, there are approximately 3 occurrences in Nevada (SEINet 2019). Not tracked in California but the Consortium of California Herbaria specimen database has 387 specimens, with at least 200 that seem unique (R. Bittman, pers. comm., 2019).
Threat Impact Comments
Threats appear to be low (R. Bittman, pers. comm., 2019).
Ecology & Habitat

Habitat

Habitat is gravelly to rocky or talus slopes, mixed grassland, buckbrush, manzanita, and sagebrush communities, and montane, subalpine, or alpine conifer woodlands (Flora of North America Editorial Committee 2005). In the high mountains of northwestern California and southwestern Oregon and the southern portion of the North Coast Range of California, plants are frequently associated with serpentine soils (Flora of North America Editorial Committee 2005). In the Sierra Nevada of eastern California and west-central Nevada, the species is found almost exclusively on granitic soils and infrequently on volcanic ones (Flora of North America Editorial Committee 2005).

Ecology

The species is a food plant for the intermediate dotted-blue butterfly (Euphilotes intermedia) (Flora of North America Editorial Committee 2005).
Terrestrial Habitats
Forest/WoodlandWoodland - ConiferShrubland/chaparralGrassland/herbaceousAlpineBare rock/talus/scree
Other Nations (1)
United StatesN4
ProvinceRankNative
NevadaS1Yes
CaliforniaSNRYes
OregonS2Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (64)
California (59)
AreaForestAcres
Bald RockPlumas National Forest4,675
Bell MeadowStanislaus National Forest7,968
Bonanza KingShasta-Trinity National Forest16,402
Bucks LakePlumas National Forest680
Caples CreekEldorado National Forest17,854
Carson - IcebergStanislaus National Forest56,430
Castle Crags AShasta-Trinity National Forest113
Castle PeakTahoe National Forest14,974
ChanchelullaShasta-Trinity National Forest3,915
Chips CreekPlumas National Forest12,940
Coyote NorthInyo National Forest11,932
Coyote SoutheastInyo National Forest53,159
Cub CreekLassen National Forest8,643
Duncan CanyonTahoe National Forest8,621
EagleStanislaus National Forest16,116
East YubaTahoe National Forest17,968
Elk CreekMendocino National Forest23,182
Glass MountainInyo National Forest52,867
Granite ChiefTahoe National Forest6,546
Grouse LakesTahoe National Forest19,085
Hall Natural AreaInyo National Forest5,236
Hoover - Emma LakeHumboldt-Toiyabe National Forest1,007
Hoover - Mt.olsenHumboldt-Toiyabe National Forest624
Hoover - NorthHumboldt-Toiyabe National Forest1,574
Hoover - Virginia LksHumboldt-Toiyabe National Forest5,050
Horse Mdw.Inyo National Forest5,687
HortonInyo National Forest5,717
IshiLassen National Forest21,805
KangarooKlamath National Forest40,617
Kings RiverSierra National Forest52,999
Log Cabin SaddlebagInyo National Forest15,165
Long MeadowHumboldt-Toiyabe National Forest11,967
Middle ForkPlumas National Forest29,278
Middle YubaTahoe National Forest7,379
Mt. JacksonHumboldt-Toiyabe National Forest20,721
Mt. OlsenInyo National Forest2,161
Mt. RebaStanislaus National Forest3,869
NessieInyo National Forest830
Nevahbe RidgeInyo National Forest302
North Fork American RiverTahoe National Forest38,495
Orleans Mtn.Klamath National Forest49,090
Orleans Mtn. BSix Rivers National Forest17,183
PyramidEldorado National Forest24,347
Raymond PeakEldorado National Forest2,518
Raymond PeakStanislaus National Forest3,646
Rock Creek WestInyo National Forest3,626
RussianKlamath National Forest21,771
San JoaquinSierra National Forest22,474
SnoozerKlamath National Forest23,414
Snow MountainMendocino National Forest14,457
Sweetwater (CA)Humboldt-Toiyabe National Forest19,241
Table Mtn.Inyo National Forest4,215
Tioga LakeInyo National Forest829
Tragedy - Elephants BackEldorado National Forest20,866
West YubaTahoe National Forest16,059
West YubaPlumas National Forest6,071
Wheeler RidgeInyo National Forest15,744
Wild Horse Mtn. (CA)Humboldt-Toiyabe National Forest28,822
Wilderness ContiguousMendocino National Forest3,606
Nevada (3)
AreaForestAcres
Boundary Peak (NV)Inyo National Forest21,851
Jobs Peak (NV)Humboldt-Toiyabe National Forest1,342
Rose - GalenaHumboldt-Toiyabe National Forest3,711
Oregon (2)
AreaForestAcres
North KalmiopsisSiskiyou National Forests91,560
South KalmiopsisSiskiyou National Forests104,477
References (2)
  1. Flora of North America Editorial Committee (FNA). 2005. Flora of North America north of Mexico. Vol. 5. Magnoliophyta: Caryophyllidae: Caryophyllales, Polygonales, and Plumbaginales. Oxford Univ. Press, New York. vii + 656 pp.
  2. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.