CPC Plant Profile: Kremmling Beardtongue
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Plant Profile

Kremmling Beardtongue (Penstemon penlandii)

Full view of this small perennial plant. Note the shorter leafy stems and upright fruiting stems. Photo Credit: Carol Dawson
Description
  • Global Rank: G1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Plantaginaceae
  • State: CO
  • Nature Serve ID: 139970
  • Date Inducted in National Collection: 02/25/1988

Penstemon penlandii, a member of the snapdragon family, can grow up to 10 inches in height. It has 5-15 flowers per stem with purple throats and blue lobes that fade to pink as they age. The only known site for P. penlandii is in Colorado on alkaline shale that weathers into barren clay containing selenium, a soil condition that is inhospitable to most other plants (USFWS 1992). Although Penland Beardtongue does not spread rhizomatously, it has short, well-developed rhizomes that help it stay in place during torrents.

Participating Institutions
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Updates
  • 09/23/2020
  • Reproductive Research

Pollination biology is studied by the Bee Biology and Systematics Lab, an Agricultural Research Service facility located at Utah State University (Laufmann 1994, Tepedino et al. 1999).

  • 09/23/2020
  • Propagation Research

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

  • 09/23/2020
  • Orthodox Seed Banking

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

  • 09/23/2020
  • Seed Collection

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

  • 09/23/2020
  • Seed Collection

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

  • 09/23/2020
  • Orthodox Seed Banking

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

  • 09/23/2020
  • Propagation Research

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens.

Nature Serve Biotics
  • 05/02/2017

Penstemon penlandii is restricted to a narrow, unusual habitat and known only from a very small area (about 5 miles by 1.5 miles) in northern Colorado. The steep topography and nature of the soils make this species' habitat vulnerable to destruction by off-road vehicles.

Michelle DePrenger-Levin
  • 01/01/2010

Threats include off-road vehicles and mineral exploration (USFWS 1989, 1992). A large number of the known plants of this species occur in a county road right-of-way, which could be a threat to the species if its presence isn't known to road workers in t

Michelle DePrenger-Levin
  • 01/01/2010

This species is known only along small area of Troublesome Creek with approximately 5,500 individuals. (USFWS 1992).

Michelle DePrenger-Levin
  • 01/01/2010

Seed germination experiments and seed collections have been done by the National Seed Storage Laboratory and the Denver Botanic Gardens. Pollination biology is studied by the Bee Biology and Systematics Lab, an Agricultural Research Service facility located at Utah State University (Laufmann 1994, Tepedino et al. 1999).

Michelle DePrenger-Levin
  • 01/01/2010

A centralized plan for the conservation and management of this species needs to be implemented.

Michelle DePrenger-Levin
  • 01/01/2010

Management needs include population monitoring and protection (private lands). Research needs include understanding aspects of its reproductive biology and ecology. Because plants in the genus Penstemon are known for their ability to thrive after ecological disturbances, disturbance research such as prescribed fire may be beneficial for conservation efforts.

Michelle DePrenger-Levin
  • 01/01/2010

Seed collection and storage.

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Photos
Nomenclature
Taxon Penstemon penlandii
Authority W.A. Weber
Family Plantaginaceae
CPC Number 7030
ITIS 196189
USDA PEPE25
Common Names Penland beardtongue | Penland penstemon | Penland's beardtongue
Associated Scientific Names Penstemon penlandii
Distribution A Colorado endemic (Grand Co.). This species is restricted to a narrow, unusual habitat and known from an area of about 2.4 km long and 0.8 km wide in northern Colorado (USFWS 1992)..
State Rank
State State Rank
Colorado S1
Habitat

Strongly seleniferous clay-shales of the Troublesome Formation; on steep barrens with sparse plant cover, sagebrush badlands. Elev. 7500-7700 ft. (USFWS 1992).This species is associated with: Artemisia (Sagebrush), Persia (Bitterbrush), Chrysothamnus (Rabbitbrush). This species is also found among species such as Astragalus pattersonii, A. bisulcatus, Penstemon cyathophorus and P. strictus as well as horsebrush, winterfat, snowberry and mountain mahogany (USFWS 1992).

Ecological Relationships

Tepedino, Griswold & Sipes (1999) found that these plants don't reproduce well when no pollinators are present. Important pollinators include several species of megachilid bees (genus Osmia) and bumblebees.

Pollinators
Common Name Name in Text Association Type Source InteractionID
Reintroduction
Lead Institution State Reintroduction Type Year of First Outplanting

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