Roadless Areas
Home/Species/ San Gabriel Linanthus

Linanthus concinnus

Milliken

San Gabriel Linanthus

G2Imperiled Found in 9 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
MediumThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.136240
Element CodePDPLM090D0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderSolanales
FamilyPolemoniaceae
GenusLinanthus
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 Date2016-09-27
Change Date2016-09-27
Edition Date2016-09-27
Edition AuthorsRusso, M. (TNC WRO), rev. D. Gries, rev. R. Bittman (2016)
Threat ImpactMedium
Range Extent250-1000 square km (about 100-400 square miles)
Number of Occurrences21 - 80
Rank Reasons
Endemic to California, Linanthus concinnus is known from the San Gabriel Mountains of Los Angeles and San Bernardino counties. It is threatened by development, recreational activities, road and trail maintenance, and trampling.
Range Extent Comments
California endemic, known from the San Gabriel Mountains of Los Angeles and San Bernardino counties.
Occurrences Comments
31 mapped occurrences, but 2 are confirmed extirpated (CNDDB 2016).
Threat Impact Comments
Threats include road and trail maintenance, recreational activities, and trampling. A few are threatened by development (CNDDB 2016).
Ecology & Habitat

Habitat

Lower montane coniferous forest, upper montane coniferous forest, rocky soils.
Terrestrial Habitats
Forest/WoodlandForest - Conifer
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial development———
1.1 - Housing & urban areas———
1.3 - Tourism & recreation areas———
4 - Transportation & service corridors———
4.1 - Roads & railroads———
6 - Human intrusions & disturbance———
6.1 - Recreational activities———

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Plant Characteristics
Economic Value (Genus)No
Roadless Areas (9)
California (9)
AreaForestAcres
CajonSan Bernardino National Forest7,548
Circle MountainSan Bernardino National Forest6,375
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 (3)
  1. California Natural Diversity Database (CNDDB). 2016. RareFind Version 5.1.1. California Department of Fish and Game, Sacramento.
  2. 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.
  3. Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.