Penstemon personatus

Keck

Closed-throated Beardtongue

G2Imperiled Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
HighThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.142053
Element CodePDSCR1L4Y0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderPlantaginales
FamilyPlantaginaceae
GenusPenstemon
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 Date2013-05-02
Change Date1987-08-06
Edition Date2013-02-15
Edition AuthorsD. Gries (1997), rev. A. Treher, R. Bittman, & A. Sessums (2013)
Threat ImpactHigh
Range Extent1000-5000 square km (about 400-2000 square miles)
Number of Occurrences6 - 80
Rank Reasons
Endemic to California: Penstemon personatus occurs in Butte, Plumas, Nevada, and Sierra Counties. Threats include road maintenance, intensive logging activities, ORV use, grazing, herbicide-use, and fire suppression.
Range Extent Comments
Occurs in the northern Sierra Nevada Range in Butte, Plumas, Nevada, and Sierra Counties in California (Coppoletta et al. 2010). Area of the minimum convex polygon, range extent, is 284 sq km.
Occurrences Comments
Twenty-three EOs (11 last surveyed sometime before 1993 and 12 surveyed since 1993. Some EOs based on herbarium specimens and have never been thoroughly surveyed (CNDDB 2013).
Threat Impact Comments
Threats include road maintenance, intensive logging activities, ORV use, grazing, herbicide-use, and fire suppression. The species was found to tolerate logging activities of a moderate intensity (Coppoletta et al. 2010 and CNDDB 2013).
Ecology & Habitat

Habitat

Conifer forests (Yellow Pine Forest, Red Fir Forest), often moist and with a substantial Shasta red fir component. In semi-shade or open places, such as dry hillsides, forest openings and edges, and disturbed places such as clearcuts and roadsides; sometimes within Montane Chaparral areas. Often on metavolcanic substrates. 1065 - 2120 m.
Terrestrial Habitats
Forest/WoodlandForest - ConiferForest EdgeShrubland/chaparral
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
4 - Transportation & service corridorsRestricted (11-30%)UnknownHigh (continuing)
4.1 - Roads & railroadsRestricted (11-30%)UnknownHigh (continuing)
5 - Biological resource useLarge (31-70%)Serious - slightHigh - low
5.3 - Logging & wood harvestingLarge (31-70%)Extreme - moderateHigh - low
6 - Human intrusions & disturbanceNegligible (<1%)UnknownUnknown
6.1 - Recreational activitiesNegligible (<1%)UnknownUnknown
7 - Natural system modificationsUnknownUnknownUnknown
7.1 - Fire & fire suppressionUnknownUnknownUnknown
8 - Invasive & other problematic species, genes & diseasesNegligible (<1%)Moderate - slightUnknown
9 - PollutionSmall (1-10%)Serious - slightUnknown

Plant Characteristics
Economic Value (Genus)No
Roadless Areas (3)
California (3)
AreaForestAcres
Bucks LakePlumas National Forest680
Middle ForkPlumas National Forest29,278
Middle YubaTahoe National Forest7,379
References (10)
  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. Coppoletta, M., Kyle Merriam, Colin Dillingham, and Linnea Hanson. 2010. The effect of timber management activities on <i>Penstemon personatus </i>on the Plumas National Forest. Available online: http://www.fs.fed.us/r5/hfqlg/monitoring/resource_reports/vegetation_and_botany/Closed-lip%20Penstemon%20frequency%20data%20analysis%202010.pdf. Accessed 15 Feb 2013.
  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. Nakamura, G., and J. K. Nelson, eds. 2001. Illustrated field guide to selected rare plants of northern California. University of California Agriculture and Natural Resources publication 3395, Oakland, CA. 370 pp.
  9. Oswald, V.H., and L. Ahart. 1994. Manual of the vascular plants of Butte County, California. California Native Plant Society, Sacramento. 348 pp.
  10. 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.