Roadless Areas
Home/Species/ Peirson's Lupine

Lupinus peirsonii

Mason

Peirson's Lupine

G3Vulnerable Found in 9 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Near threatenedIUCN
LowThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.153703
Element CodePDFAB2B330
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
IUCNNear threatened
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderFabales
FamilyFabaceae
GenusLupinus
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 MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-09-28
Change Date2016-09-28
Edition Date2016-09-28
Edition AuthorsBittman and Treher (2016), rev. R. Bittman (2016)
Threat ImpactLow
Range Extent<100 square km (less than about 40 square miles)
Number of Occurrences6 - 20
Rank Reasons
Endemic to California and occurring only in the San Gabriel Mountains of Los Angeles County. There are approximately 12 occurrences. All occurrences are on National Forest Lands. Threats are estimated to be low.
Range Extent Comments
Endemic to California and occurring only in the San Gabriel Mountains (Los Angeles County).
Occurrences Comments
Twelve occurrences, of which five have not been seen in 30 years, but are thought still extant (CNDDB 2016).
Threat Impact Comments
Threats are probably low but may include road maintenance, trampling, and erosion (CNDDB 2016).
Ecology & Habitat

Habitat

Loose gravelly and rocky desert slopes, sometimes on roadsides, within Joshua Tree “Woodland”, Pinyon-Juniper Woodland, and Red Fir Forest communities. 1000 - 2500 m.
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest EdgeWoodland - ConiferDesert
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaS3Yes
Threat Assessments
ThreatScopeSeverityTiming
4 - Transportation & service corridorsRestricted (11-30%)UnknownHigh (continuing)
4.1 - Roads & railroadsRestricted (11-30%)UnknownHigh (continuing)
6 - Human intrusions & disturbanceSmall (1-10%)UnknownHigh (continuing)
6.1 - Recreational activitiesSmall (1-10%)UnknownHigh (continuing)
9 - PollutionRestricted (11-30%)UnknownHigh (continuing)
9.3 - Agricultural & forestry effluentsRestricted (11-30%)UnknownHigh (continuing)
9.3.2 - Soil erosion, sedimentationRestricted (11-30%)UnknownHigh (continuing)

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Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (9)
California (9)
AreaForestAcres
Circle MountainSan Bernardino National Forest6,375
Cucamonga AAngeles National Forest1,249
Cucamonga CSan Bernardino National Forest4,106
Pleasant ViewAngeles National Forest26,395
San DimasAngeles National Forest7,160
San Gabriel AddAngeles National Forest2,527
Sheep MountainAngeles National Forest21,098
West ForkAngeles National Forest1,169
WestforkAngeles National Forest4,407
References (7)
  1. CalFlora. 2005. Information on California plants for education, research and conservation. Berkeley, California: The CalFlora Database [web application]. Available: http://www.calflora.org/. (Accessed 2005)
  2. California Native Plant Society (CNPS). 2001. Inventory of Rare and Endangered Plants of California (sixth edition). Rare Plant Scientific Advisory Committee, David P. Tibor, Convening Editor. California Native Plant Society. Sacramento, CA. x + 388pp.
  3. California Natural Diversity Database (CNDDB). 2016. RareFind Version 5.1.1. California Department of Fish and Game, Sacramento.
  4. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 pp.
  5. Isely, D. 1998. Native and naturalized Leguminosae (Fabaceae) of the United States (exclusive of Alaska and Hawaii). Monte L. Bean Life Science Museum, Brigham Young University; MLBM Press, Provo, Utah. 1007 pp.
  6. 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.
  7. Munz, P.A., with D.D. Keck. 1959. A California flora. Univ. California Press, Berkeley. 1681 pp.