Linanthus killipii

Mason

Baldwin Lake Linanthus

G1Critically Imperiled Found in 3 roadless areas NatureServe Explorer →
G1Critically ImperiledGlobal Rank
Very highThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.149949
Element CodePDPLM090N0
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 Date2017-01-04
Change Date2017-01-04
Edition Date2017-01-04
Edition AuthorsD. Gries, rev. A. Treher, R. Bittman and A. Sessums (2013), rev. R. Bittman (2017)
Threat ImpactVery high
Range Extent100-250 square km (about 40-100 square miles)
Number of Occurrences21 - 80
Rank Reasons
Endemic to southern California in the San Bernardino Mountains. Known from a small area and very highly threatened. Threats include development, non-native species, and recreational use.
Range Extent Comments
Endemic to southern California in the San Bernardino Mountains.
Occurrences Comments
Thirty occurrences, of which five are historic and haven't been seen in over 20 years (CNDDB 2017).
Threat Impact Comments
Threats include development, ORVs, mining, weeds (Bromus tectorum), wood cutting, trampling by horses, hikers, trespass grazing, burros, and recreational use (CNDDB 2017).
Ecology & Habitat

Habitat

Dry, open areas within Pinyon-Juniper Woodland and Red Fir Forest communities, including dry slopes, alkaline meadows, and pebble plains (areas of dense clay soils armored by a lag gravel of quartzite pebbles that form openings of low cover and are dominated by herbaceous, cushion-forming species). 1500 - 2400 m.
Terrestrial Habitats
Forest/WoodlandForest - ConiferWoodland - ConiferGrassland/herbaceousBarrens
Other Nations (1)
United StatesN1
ProvinceRankNative
CaliforniaS1Yes
Threat Assessments
ThreatScopeSeverityTiming
1 - Residential & commercial development
1.1 - Housing & urban areas
2 - Agriculture & aquaculture
2.3 - Livestock farming & ranching
3 - Energy production & miningSmall (1-10%)Negligible or <1% pop. declineHigh (continuing)
3.2 - Mining & quarryingSmall (1-10%)Negligible or <1% pop. declineHigh (continuing)
4 - Transportation & service corridorsSmall (1-10%)Negligible or <1% pop. decline
4.1 - Roads & railroadsSmall (1-10%)Negligible or <1% pop. decline
5 - Biological resource useSmall (1-10%)Negligible or <1% pop. decline
5.3 - Logging & wood harvestingSmall (1-10%)Negligible or <1% pop. decline
6 - Human intrusions & disturbanceLarge (31-70%)Moderate or 11-30% pop. declineModerate (short-term)
6.1 - Recreational activitiesLarge (31-70%)Moderate or 11-30% pop. declineModerate (short-term)
8 - Invasive & other problematic species, genes & diseasesRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
8.1 - Invasive non-native/alien species/diseasesRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
8.2 - Problematic native species/diseasesRestricted (11-30%)Moderate or 11-30% pop. declineHigh (continuing)
9 - PollutionSmall (1-10%)Negligible or <1% pop. declineModerate (short-term)
9.4 - Garbage & solid wasteSmall (1-10%)Negligible or <1% pop. declineModerate (short-term)

Plant Characteristics
Economic Value (Genus)No
Roadless Areas (3)
California (3)
AreaForestAcres
Granite PeakSan Bernardino National Forest450
Heartbreak RidgeSan Bernardino National Forest4,455
SugarloafSan Bernardino National Forest8,206
References (8)
  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). 2013. RareFind Version 4. California Department of Fish and Game, Sacramento.
  4. California Natural Diversity Database (CNDDB). 2017. RareFind Version  5.2.14. California Department of Fish and Game, Sacramento.
  5. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 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.
  8. 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.