Roadless Areas
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Eatonella nivea

(D.C. Eat.) Gray

White Eatonella

G4Apparently Secure Found in 8 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
UnknownThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.142627
Element CodePDAST37020
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusEatonella
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 Date2024-06-27
Change Date2024-06-27
Edition Date2024-06-27
Edition AuthorsMorse, L.E., rev. D. Gries (1998), rev. Maybury (2002). rev. Johnson, J. (2024)
Threat ImpactUnknown
Range Extent200,000-2,500,000 square km (about 80,000-1,000,000 square miles)
Number of Occurrences21 - 300
Rank Reasons
Eatonella nivea is a small annual herb mostly of the Great Basin and Columbia Plateau in the western United States. Little is known about threats or trends, but with a large range extent and more than 60 occurrences, this species is apparently secure.
Range Extent Comments
Eatonella nivea is widespread across the Great Basin and Columbia Plateau from eastern California to northwestern Utah, north to central Idaho and Washington (FNA 2006, SEINet 2024). Range extent was estimated using herbarium specimens and photo-based observations documented between 1993 and 2024 (GBIF 2024, iNaturalist 2024, SEINet 2024).
Occurrences Comments
By applying a 1 km separation distance to herbarium records and photo-based observations documented between 1993 and 2024, it is estimated that there are more than 60 occurrences rangewide (GBIF 2024, iNaturalist 2024, SEINet 2024). This desert annual may be underrepresented in collections due to its small stature and highly variable population numbers that are dependent on annual precipitation.
Threat Impact Comments
Although threats are not widely documented, Eatonella nivea is potentially threatened by development, road maintenance, invasive species, livestock grazing, and other threats in some places. However, their overall impact is likely negligible given species' broad range, large number of occurrences, tolerance of light disturbance, and affinity for typically abundant habitats, as well as no obvious intrinsic vulnerabilities.
Ecology & Habitat

Habitat

This species grows in sandy or gravelly soils, often with sagebrush scrub (FNA 2006).
Terrestrial Habitats
Shrubland/chaparralBarrens
Other Nations (1)
United StatesN4
ProvinceRankNative
IdahoS3Yes
UtahSNRYes
NevadaS3Yes
OregonS3Yes
CaliforniaSNRYes
WashingtonS2Yes
Threat Assessments
ThreatScopeSeverityTiming
Unknown/undeterminedUnknownUnknownUnknown

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Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (8)
California (4)
AreaForestAcres
Birch CreekInyo National Forest28,816
Coyote NorthInyo National Forest11,932
Excelsior (CA)Inyo National Forest45,607
Mono CratersInyo National Forest7,115
Nevada (4)
AreaForestAcres
Chineese Camp (NV)Humboldt-Toiyabe National Forest15,207
Pine Grove SouthHumboldt-Toiyabe National Forest88,945
Rough CreekHumboldt-Toiyabe National Forest8,476
West Walker (NV)Humboldt-Toiyabe National Forest5,683
References (7)
  1. Flora of North America Editorial Committee (FNA). 2006c. Flora of North America north of Mexico. Vol. 21. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford Univ. Press, New York. xxii + 616 pp.
  2. Global Biodiversity Information Facility (GBIF). 2024. Global Biodiversity Information Facility (GBIF) data portal. Online. Available: https://www.gbif.org/ (accessed 2024).
  3. iNaturalist. 2024. Online. Available: https://www.inaturalist.org (accessed 2024).
  4. Kartesz, J.T. 1988. A flora of Nevada. Ph.D. dissertation. Univ. of Nevada, Reno. 3 volumes. 1729 pp.
  5. 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.
  6. Rosentreter, R. 1986. Sensitive and uncommon plants in the Boise District Bureau of Land Management. Bureau of Land Management, Idaho State Office, Technical Bull., Boise, ID. 87 pp.
  7. Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).