Eriogonum spectabile

B.L. Corbin, Reveal & R. Barron

Barron's Buckwheat

G1Critically Imperiled Found in 2 roadless areas NatureServe Explorer →
G1Critically ImperiledGlobal Rank
HighThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.738331
Element CodePDPGN08750
Record TypeSPECIES
ClassificationSpecies
Classification StatusProvisional
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygonales
FamilyPolygonaceae
GenusEriogonum
Concept Reference
Corbin, B. L., J. L. Reveal and R. Barron. 2000. Eriogonum spectabile (Polygonaceae): A new species from northeastern California. Madrono 47(2):134-137.
Conservation Status
Review Date2016-05-31
Change Date2004-07-27
Edition Date2005-05-13
Edition AuthorsOliver, L.; rev. R. Bittman 5/2005
Threat ImpactHigh
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences1 - 5
Rank Reasons
Eriogonum spectabile is known from three occurrence in Plumas County, California in the Lassen National Forest. This species is potentially threatened by logging which occurs extensively in the area, firewood cutting and other activities related to it, natural habitat changes such as plant competition, climatic change, change in fire regime and browsing. Its low population numbers and few populations in general make it suseptible to catastrophic extinction events.
Range Extent Comments
There are only three occurrences of this species konwn and they are all within the Lassen National Forest in Plumas County, California. This area is considered to be the southern limit of the Cascades Range. It should be noted that the nearby Caribou Wilderness Area contains extensive suitable habitat, most of which has not been surveyed (Corbin et al. 2000). Total range extent calculated as approx. 0.3 mi sq.
Occurrences Comments
As of 2005, a few years after this taxon was described, there were still only 2 occurrences (3 colonies).
Threat Impact Comments
All known occurrences as of 2000 occurred on national forest land, however, these lands are without special designation, so potential human threats do exist. While no human disturbance was evident at the time this species was published, there is nearby disturbance. Adjacent areas have been logged extensively, firewood cutting is common and skid trails and woodcutter roads criss-cross are found throughout the area. This species is also threatened by natural habitat changes, including increased competition with vegetation, climate change, and change in the fire regime. Finally, browsing on flowers is a threat (Corbin et al. 2000). Logging is the primary threat.
Ecology & Habitat
Other Nations (1)
United StatesN1
ProvinceRankNative
CaliforniaS1Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (2)
California (2)
AreaForestAcres
Black CinderLassen National Forest239
ProspectLassen National Forest4,078
References (1)
  1. Corbin, B. L., J. L. Reveal and R. Barron. 2000. <i>Eriogonum spectabile</i> (Polygonaceae): A new species from northeastern California. Madrono 47(2):134-137.