CPC National Collection Plant Profile

Echinocactus mariposensis

Photographer:
Kathy Rice

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CPC National Collection Plant Profile

Echinocactus mariposensis


Family: 
Cactaceae  
Common Name: 
Lloyd's mariposa cactus
Author: 
(Hester) L. Benson
Growth Habit: 
Shrub
CPC Number: 
2941

Distribution
Protection
Conservation
References


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Echinocactus mariposensisenlarge
Photographer: Kathy Rice


Echinocactus mariposensis is Not Sponsored
Primary custodian for this plant in the CPC National Collection of Endangered Plants is: 
Kathleen C. Rice contributed to this Plant Profile.

 
Echinocactus mariposensis


Echinocactus mariposensis is a solitary, diminutive-sized cactus that grows to only about 10-15 cm tall, and 8 cm in diameter at maturity. The plant has a grayish appearance overall, and on closer inspection, delicate, brown-tipped central spines can be seen arising from the many-spined tubercules. Flowers are not showy or large, and are clustered at the apex of plants. Petals are whitish with the tepals brown-tinged. Light green fruits are formed beneath the apical spines, and do not dry at maturity.


Distribution & Occurrence

State Range
  Texas
State Range of  Echinocactus mariposensis
Habitat
  The plants are found growing out in the open sun on gentle bajadas on a rocky limestone substrate in the Chihuahuan Desert. (Texas Parks and Wildlife 2002)

Distribution
  Documented sites have been reported from many locations in the Big Bend National Park area, and from northern Coahuila, Mexico. (USFWS 2002)

Number Left
  Known from about 30 sites, many of which occur within Black Gap Wildlife Management Area and Big Bend National Park (Texas Parks and Wildlife 2002).

Protection

Global Rank:  
G2
 
1/16/2002
Guide to Global Ranks
Federal Status:  
 
10/24/1996
Guide to Federal Status
Recovery Plan:  
Yes
 
4/13/1990

State/Area Protection
  State/Area Rank Status Date  
  Mexico *FR83 8/26/1988  
  Texas S2 T 4/28/1987  

Conservation, Ecology & Research

Ecological Relationships
  Ecological relationships are unknown, however this species is associated with: Fluorensia cernua, Forestiera angustifolia, Acacia schottii, Yucca rostrata, Larrea tridentata, Agave lechuguilla, Ephedra viridis, and many other small cactus species (Schmalzel et al. 1995).

Threats
  Threats to documented sites are related primarily to illegal collection. Anderson (1986) concluded a three-year study of this species for Joint Task Force 6 with a recommendation to the USFWS for reconsideration of conservation status.

Current Research Summary
  None known.

Current Management Summary
  Management is for elimination of direct or indirect threats to the species. Desert Botanical Garden staff are assisting Big Bend National Park staff in continuation of monitoring of permanent plots established by Dr. E.A. Anderson.

Research Management Needs
  • Research needs include understanding seed dormancy/ecology, seedling establishment and recruitment, allocation to growth and reproduction, and impact of herbivory.
• Monitoring of natural populations would help assess the threat of collecting on the species.

Monitoring Efforts
  Not Available

Ex Situ Needs
  Seeds have not yet been produced on cultivated plants grown to maturity. Additional germination studies are needed.

References

Books (Single Authors)

Benson, L. 1969. Cacti of Arizona. Tuscon, AZ: The University of Arizona Press. 218p.

Benson, L. 1982. The Cacti of the United States and Canada. Stanford, California: Stanford University Press. 1044p.

Correll, D.S.; Johnston, M.C. 1970. Manual of the vascular plants of Texas. Renner: Texas Research Foundation. 1881p.

Kartesz, J.T. 1993. Species distribution data for vascular plants of 70 geographical areas, from unpublished data files at the North Carolina Botanical Garden.

Kartesz, J.T. 1996. Species distribution data at state and province level for vascular plant taxa of the United States, Canada, and Greenland (accepted records), from unpublished data files at the North Carolina Botanical Garden.

Poole, J.M.; Riskind, D.H. 1987. Endangered, threatened, or protected native plants of Texas. Austin, TX: Texas Parks Wildlife Department.

Warnock, B.H. 1977. Wildflowers of the Davis Mountains and the Marathon Basin, Texas. Alpine, Texas: Sul Ross State Univ. 274p.

Weniger, D. 1984. Cacti of Texas and neighboring states: a field guide. Austin: University of Texas Press. 356p.

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.

Electronic Sources

(2000). Center for Plant Conservation's National Living Collection--Profiles. Desert Botanical Garden. http://www.dbg.org/Collections/cpc.html. Accessed: 2002.

(2002). Botany: Investigator's Annual Reports. The National Park Service: Big Bend National Park. http://www.nps.gov/bibe/iar/botany.htm. Accessed: 2002.

(2002). Texas Threatened and Endangered Plants--Profiles. Texas Parks and Wildlife. http://www.tpwd.state.tx.us/nature/endang/plants/index.htm. Accessed: 2002.

USFWS. (2002). U.S. Plant Profiles. U.S. Fish and Wildlife Service, International Affairs. http://international.fws.gov/animals/plantpro.html. Accessed: 2002.

Journal Articles

Anderson, E.F. 1986. A revision of the genus Neolloydia B. & R. (Cactaceae). Bradleya. 4: 1-28.

Benson, L. 1966. A revision of Sclerocactus. Cactus and Succulent Journal of America. 38: 54-55.

Hester, J. 1945. Echinomastus mariposensis. Desert Plant Life. 17: 59.

Schmalzel, R.J.; Reichenbacher, F.W.; Rutman, S. 1995. Demographic study of the rare Coryphantha robbinsorum (Cactaceae) in southeastern Arizona. Madroño. 42, 3: 332-348.

Tepedino, V.J. 1997. Wild Bees and Floral Jewels. Wings. 20, 1: 8-10.

Tepedino, V.J. 2000. Wild Bees and Floral Jewels. Castilleja: The Newsletter of the Wyoming Native Plant Society. 19, 4: 6-8.

USFWS. 1979. Determination of threatened status for Echinomastus mariposensis. Federal Register.

Reports

Brack, S. 1986. Germination Tips. Belen, NM: Mesa Garden. p.5.

Heil, K.D.; Brack, S.; Porter, J.M. 1985. The rare and sensitive cacti of Big Bend National Park. Big Bend National Park, Texas. p.41.

McKinney, B.R. 1995. The status of Neolloydia mariposensis (Lloyd's mariposa cactus) on the Black Gap Wildlife Management Area, Brewster County, Texas. Brewster County, Texas: Texas Park and Wildlife Dept. p.13 + maps.

USFWS. 1989. Recovery plan for the Lloyd's mariposa cactus, Neolloydia mariposensis (Hester) L. Benson. Albuquerque, New Mexico: U.S. Fish and Wildlife Service. p.47.

Weniger, D. 1979. Status report on Neolloydia mariposensis. Albuquerque, New Mexico: U.S. Fish & Wildlife Service.


  This profile was updated on 6/10/2014
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