Eriogonum kennedyi var. austromontanum
Munz & Johnston
Southern Mountain Buckwheat
T2T2Global Rank
U.S. Fish & Wildlife Service, https://www.usa.gov/government-works
Identity
Unique IDELEMENT_GLOBAL.2.131604
Element CodePDPGN083B2
Record TypeSPECIES
ClassificationVariety
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPolygonales
FamilyPolygonaceae
GenusEriogonum
Other Common Names
southern mountain buckwheat (EN) Southern Mountain Wild 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
Review Date2016-09-19
Change Date1989-05-01
Edition Date1988-12-12
Edition AuthorsJoyal, E., rev. Maybury (1997)
Range Extent<100-20,000 square km (less than about 40-8000 square miles)
Number of Occurrences1 - 20
Rank Reasons
Restricted to a limited, fragile habitat in the San Bernardino Mountains of southern California. There are fewer than ten populations known to be extant. Heavy off-road vehicle use is occurring and is a significant threat; the fragile pebble plain habitat is extremely suseptible to long-persisting or irreversible damage from these activities. Other threats include cattle trampling and recreational development. Extensive habitat was probably lost with the construction of a dam and reservoir in the late 1800s.
Range Extent Comments
Mount Pinos and San Bernadino Mountains in southern California.
Threat Impact Comments
California Native Plant Society considers endangered in part of its range.
Ecology & Habitat
Habitat
Pebble plains: dense clay soils, usually covered with a cobble pavement of quartzite. These occur as sparsely vegetated openings openings in the surrounding forest. 1800-2300 m elevation. They support several endemic plant species and disjunct occurrences of plants that are more common elsewhere. E. kennedyi var. austromontanum occurs at 1900-2100 m elevation in these dry openings in yellow pine forest.
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest EdgeBarrens
Other Nations (1)
United StatesN2
| Province | Rank | Native |
|---|---|---|
| California | S2 | Yes |
Threat Assessments
| Threat | Scope | Severity | Timing |
|---|---|---|---|
| 2 - Agriculture & aquaculture | Large (31-70%) | Moderate or 11-30% pop. decline | High (continuing) |
| 2.3 - Livestock farming & ranching | Large (31-70%) | Moderate or 11-30% pop. decline | High (continuing) |
| 6 - Human intrusions & disturbance | Large (31-70%) | Serious or 31-70% pop. decline | High (continuing) |
| 6.1 - Recreational activities | Large (31-70%) | Serious or 31-70% pop. decline | High (continuing) |
| 7 - Natural system modifications | Large (31-70%) | Serious or 31-70% pop. decline | Insignificant/negligible or past |
| 7.2 - Dams & water management/use | Large (31-70%) | Serious or 31-70% pop. decline | Insignificant/negligible or past |
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (6)
California (6)
| Area | Forest | Acres |
|---|---|---|
| Deep Creek | San Bernardino National Forest | 23,869 |
| Granite Peak | San Bernardino National Forest | 450 |
| Heartbreak Ridge | San Bernardino National Forest | 4,455 |
| Sawmill - Badlands | Los Padres National Forest | 51,362 |
| Sespe - Frazier | Los Padres National Forest | 106,910 |
| Sugarloaf | San Bernardino National Forest | 8,206 |
References (4)
- 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.
- Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
- 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.
- U.S. Fish and Wildlife Service (USFWS). 1995. Proposed endangered or threatened status for seven plants from the mountains of southern California. Federal Register 60(148): 39337-39347.