Home/Species/ Nodding Buckwheat

Eriogonum nutans

Torr. & Gray

Nodding Buckwheat

G4Apparently Secure Found in 10 roadless areas NatureServe Explorer →

G4Apparently SecureGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.159503

Element CodePDPGN084B0

Record TypeSPECIES

ClassificationSpecies

Classification StatusStandard

Name CategoryVascular Plant

Endemicendemic to a single nation

KingdomPlantae

PhylumAnthophyta

ClassDicotyledoneae

OrderPolygonales

FamilyPolygonaceae

GenusEriogonum

Other Common Names

Dugway buckwheat (EN) Dugway Buckwheat (EN)

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.

Conservation Status

Rank Method Rank calculation - Biotics v2

Review Date2020-09-22

Change Date2020-09-22

Edition Date2020-09-22

Edition AuthorsRusso, Mary (TNC WRO) (1989), rev. Treher (2020)

Threat ImpactUnknown

Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)

Number of Occurrences81 - 300

Rank Reasons

Eriogonum nutans occurs in the western United States and is comprised of two varieties, Eriogonum nutans var. nutans in Arizona, California, Nevada, Oregon, and Utah, and Eriogonum nutans var. glabratum, a Nevada endemic. Combined, there are around 100 or more occurrences. Threats and trends are not known.

Range Extent Comments

Eriogonum nutans occurs in the western United States. There are two varieties. Eriogonum nutans var. glabratum is restricted to Elko County, Nevada and variety Eriogonum nutans var. nutans occurs sporadically in Arizona, California, Nevada, Oregon, and Utah.

Occurrences Comments

There are 80 or more occurrences of Eriogonum nutans var. nutans rangewide based on a combination of data sources including NatureServe Network data, herbarium specimens, and photo based observations (GBIF 2020, iNaturalist 2020, SEINet 2020). Careful vetting of data, survey of historical occurrences, and inventory of suitable habitat are needed to refine this number, which could be higher or lower. There are fewer than 20 occurrences for Eriogonum nutans var. glabratum.

Ecology & Habitat

Habitat

This taxon grows in sand or gravel on flats and slopes within saltbush, greasewood, sagebrush, and mountain mahogany communities or pinyon-juniper woodlands, often with a well-developed cryptogamic crust, at elevations 1,200 to 2,800 m (FNA 2005).

Terrestrial Habitats

Forest/WoodlandWoodland - HardwoodWoodland - ConiferWoodland - MixedShrubland/chaparral

Other Nations (1)

United StatesN4

Province	Rank	Native
Utah	SNR	Yes
Oregon	SNR	Yes
Nevada	S4	Yes
California	SNR	Yes

Plant Characteristics

DurationANNUAL

Economic Value (Genus)No

Roadless Areas (10)

California (1)

Area	Forest	Acres
Devil's Gate (CA)	Humboldt-Toiyabe National Forest	9,946

Nevada (9)

Area	Forest	Acres
Boundary Peak (NV)	Inyo National Forest	21,851
Chineese Camp (NV)	Humboldt-Toiyabe National Forest	15,207
Four Mile	Humboldt-Toiyabe National Forest	24,093
Pine Grove South	Humboldt-Toiyabe National Forest	88,945
Rough Creek	Humboldt-Toiyabe National Forest	8,476
Ruby - Smith Ck	Humboldt-Toiyabe National Forest	7,553
Sugarloaf	Inyo National Forest	11,534
Table Mtn. - East	Humboldt-Toiyabe National Forest	87,789
West Walker (NV)	Humboldt-Toiyabe National Forest	5,683

References (5)

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.
Global Biodiversity Information Facility (GBIF). 2020. GBIF data accessed through GeoCAT portal. Online. Available: http://geocat.kew.org/ (accessed 2020).
iNaturalist. 2020. Online. Available: http://www.inaturalist.org (accessed 2020).
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.
Southwest Environmental Information Network (SEINet). 2020. Collections Databases. Online. Available: http://swbiodiversity.org/seinet/collections/index.php (accessed 2020).