Home/Species/ Hall's Beardtongue

Penstemon hallii

Gray

Hall's Beardtongue

G4Apparently Secure Found in 3 roadless areas NatureServe Explorer →

G4Apparently SecureGlobal Rank

UnknownThreat Impact

Identity

Unique IDELEMENT_GLOBAL.2.149937

Element CodePDSCR1L2W0

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 Method Rank calculation - Biotics v2

Review Date2026-03-06

Change Date2008-05-19

Edition Date2024-02-21

Edition AuthorsOliver, L. (2006), rev. K. Regier (2024)

Threat ImpactUnknown

Range Extent20,000-200,000 square km (about 8000-80,000 square miles)

Number of Occurrences81 - 300

Rank Reasons

Penstemon hallii is known from over 200 occurrences across 73,000 square kilometers in Colorado, USA.

Range Extent Comments

Penstemon hallii is known from the alpine zone in Colorado, USA. Estimated range extent in Colorado of 73,009 square kilometers was calculated in GeoCAT based on specimen label data from SEINet (2024).

Occurrences Comments

As of 2024 there are estimated to be about 210 occurrences based on specimen label data from SEINet (2024).

Threat Impact Comments

While this species is common on tundras in the alpine zone, it is at risk from habitat loss due to global warming (J. Handwerk, pers. comm., n.d.).

Ecology & Habitat

Habitat

Penstemon hallii grows in "rocky to gravelly alpine meadows" (FNA 2019).

Reproduction

This species flowers from July to August (FNA 2019).

Terrestrial Habitats

Grassland/herbaceousAlpine

Other Nations (1)

United StatesN4

Province	Rank	Native
Colorado	S4	Yes

Threat Assessments

Threat	Scope	Severity	Timing
11 - Climate change & severe weather	Unknown	Unknown	High (continuing)

Plant Characteristics

DurationPERENNIAL

Economic Value (Genus)No

Roadless Areas (3)

Colorado (3)

Area	Forest	Acres
Bristol Head	Rio Grande NF	46,087
Pole Mountain / Finger Mesa	Rio Grande NF	43,863
Troublesome South	Routt NF	47,359

References (5)

Flora of North America Editorial Committee (FNA). 2019. Flora of North America north of Mexico. Vol. 17: Magnoliophyta: Tetrachondraceae to Orobanchaceae. Oxford Univ. Press, New York. xxiv + 737 pp.
Handwerk, Jill. Botany Information Manager. Colorado Natural Heritage Program. Colorado State University. Ft. Collins, Colorado.
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.
Southwest Environmental Information Network (SEINet). 2024. Collections Databases. Online. Available: https://swbiodiversity.org/seinet/collections/index.php (accessed 2024).
Weber, W.A., and R.C. Wittmann. 1996a. Colorado flora: Eastern slope. Revised edition. Univ. Press of Colorado, Niwot, Colorado. 524 pp.

Penstemon hallii

Habitat

Reproduction

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