CPC National Collection Plant Profile

Penstemon clutei

Photographer:
Joyce Maschinski

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CPC National Collection Plant Profile

Penstemon clutei


Family: 
Scrophulariaceae  
Common Names: 
beardtongue, sunset crater beardtongue
Author: 
A. Nels.
Growth Habit: 
Forb/herb
CPC Number: 
3221

Distribution
Protection
Conservation
References


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Penstemon cluteienlarge
Photographer: Joyce Maschinski
jmaschinski[at]fairchildgarden.org


Penstemon clutei is Fully Sponsored
Primary custodian for this plant in the CPC National Collection of Endangered Plants is: 
Joyce Maschinski, Ph.D. contributed to this Plant Profile.

 
Penstemon clutei


Penstemon clutei is a unique species in a genus of nearly 300 species in North and Central America. Forty six of these 300 species are found in Arizona. (Lehr 1978)

Plants have one to several stems that grow up to 32 inches tall. Leaves are waxy and serrate. Bright pink tubular flowers, each with a swollen belly-like protuberance at the bottom, appear from late April through early August.

Distribution & Occurrence

State Range
  Arizona
State Range of  Penstemon clutei
Habitat
  Found in volcanic fields associated with the Sunset Crater eruption at 6500-8500 ft elevation (Kearney & Peebles 1973)

Distribution
  Known only from the vicinity of the Sunset Crater and the Indian Flat area in Coconino County, Arizona. (Kearney & Peebles 1973; Arizona Fish and Game Department 1999)

Number Left
  36 known populations; usually found as small clusters of plants in scattered pockets

Protection

Global Rank:  
G2
 
6/10/2003
Guide to Global Ranks
Federal Status:  
SC
 
1/19/1996
Guide to Federal Status
Recovery Plan:  
No
 

State/Area Protection
  State/Area Rank Status Date  
  Arizona S2 8/1/2002  
  Navaho Nation SU 9/8/1986  

Conservation, Ecology & Research

Ecological Relationships
  None known.

Threats
  Threats include:
Off-road vehicles
Herbivory by domestic and wild ungulate
Timber salvage operations

Current Research Summary
  Fule et al. (2001) have been studying various aspects of P. clutei biology for years. Their findings indicate that the species is disturbance-adapted and can benefit from release from competition in the wild.

Current Management Summary
  The USDA Forest Service manages Penstemon clutei as a sensitive species.

Research Management Needs
  The impact of off-road vehicles on this species needs to be reduced.
There is a need for an updated status report for this species.

Ex Situ Needs
  The plant grows well in cultivation, but is relatively short-lived i.e., 3 years.

References

Books (Single Authors)

Kearney, T.H.; Peebles, R.H. 1973. Arizona flora. Berkeley, CA: University of California Press. 1085p.

Lehr, J.H. 1978. A Catalog of the Flora of Arizona. Phoenix, Arizona: Desert Botanical Garden. 33p.

Rutman, S. 1992. Handbook of Arizona's endangered, threatened, and candidate plants. Phoenix, Arizona: U.S. Fish & Wildlife Service.

Books (Sections)

Kartesz, J.T. 1999. A synonymized checklist of the vascular flora of the U.S., Canada, and Greenland. In: Kartesz, J.T.; Meacham, C.A., editors. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden. Chapel Hill, NC.

Conference Proceedings

Crisp, D.L. Monitoring of Penstemon clutei A. Nels on Tornado Salvage. Gen. Tech. Rep. RM-GTR-283. Proceedings of the Southwestern Rare and Endangered Plant Conference; September 11-14; Flagstaff, AZ. In: Maschinski, J.; Hammond, H.D.; Holter, L., editors. 1996. USDA and US Forest Service. p 243-246.

Fule, P.Z.; Springer, J.D.; Huffman, D.W.; Covington, W.W. Response of a Rare Endemic, Penstemon clutei, to Burning and Reduced Belowground Competition. Southwestern rare and endangered plants: proceedings of the third conference; September 25-28; Flagstaff, AZ. In: Maschinski, Joyce; Holter, Louella, editors. 2000. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. Fort Collins, CO (Proceedings RMRS-P-23). p 139-152.

Electronic Sources

Arizona Game and Fish Department. (1999). Plant Abstracts. Compiled and edited by the Heritage Data Management System, Arizona Game and Fish Department, Phoenix, AZ. http://www.gf.state.az.us/frames/fishwild/hdms_site/Abstracts/Plants/abstracts%20-%20plants.htm. Accessed: 2002.

Journal Articles

Clokey, I.W.; Keck, D.D. 1939. Reconsideration of certain members of Penstemon subsection spectabilis. Bulletin of Southern California Academy of Science. 38: 9-13.

Reports

Fletcher, R. 1979. Penstemon clutei. Flagstaff, Arizona: Unpublished status report for U.S. Forest Service.

Goodwin, G. 1979. Observations on Penstemon clutei on the Coconino National Forest. Flagstaff, Arizona: Unpublished report for the Coconino National Forest.

Phillips, A.M., III. 1991. Summary of mitigation measures for Penstemon clutei Transwestern natural gas pipeline, Loop G. Flagstaff, Arizona: Unpublished report for SWCA Environmental Consultants.

Phillips, A.M., III; Murov, M.; van Ommeren, R. 1992. Unpublished final report, distribution and ecology of Sunset Crater Beardtongue (Penstemon clutei) in the Cinder Hills area, Coconino National Forest, Flagstaff, Arizona. For Coconino National Forest.


  This profile was updated on 3/4/2010
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