Mentzelia goodrichii - Thorne & Welsh
Goodrich's Blazingstar
Taxonomic Status: Accepted
Related ITIS Name(s): Mentzelia goodrichii Thorne & Welsh (TSN 507882)
Unique Identifier: ELEMENT_GLOBAL.2.156459
Element Code: PDLOA03240
Informal Taxonomy: Plants, Vascular - Flowering Plants - Blazingstar Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Violales Loasaceae Mentzelia
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Concept Reference
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Concept Reference: Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
Concept Reference Code: B99KAR01HQUS
Name Used in Concept Reference: Mentzelia goodrichii
Taxonomic Comments: Recognized by Kartesz (1999); see also Welsh (Rhodora 95: 392-421, 1993).
Conservation Status
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NatureServe Status

Global Status: G1
Global Status Last Reviewed: 20Feb2013
Global Status Last Changed: 20Feb2013
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: G1 - Critically Imperiled
Reasons: A narrow endemic of Duchesne County, Utah, where it is known from about 6 locations on the Bad Land Cliffs. Oil and gas exploration and development are increasing locally and may be future threats.
Nation: United States
National Status: N1

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Utah (S1)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Endemic to southern Duchesne County, Utah, along Bad Land Cliffs above Argyle Canyon and west into Avintaquin Canyon. Reported along the escarpment of Willow and Argyle canyons.

Area of Occupancy:  
Area of Occupancy Comments: Approximately 6 4-sq km grid cells.

Number of Occurrences: 6 - 20
Number of Occurrences Comments: 6 occurrences (last surveyed 1988-1997). There are 8 known collections of this plant from Ashley National Forest, but these might not all represent separate populations.

Overall Threat Impact Comments: So far this species is quite well protected by the habitat in which it grows and threats are minor (S. Goodrich, USFS, pers. comm. 2011). Oil and gas exploration and development are increasing locally and may be future threats (Franklin 2005).

Short-term Trend: Unknown
Short-term Trend Comments: No information is available documenting the status of populations, i.e., neither population size estimates, habitat condition or potential impacts.Extensive oil and gas exploration and development are on the increase locally and are perhaps a potential source of future impacts.

Long-term Trend: Unknown

Other NatureServe Conservation Status Information

Distribution
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Global Range: Endemic to southern Duchesne County, Utah, along Bad Land Cliffs above Argyle Canyon and west into Avintaquin Canyon. Reported along the escarpment of Willow and Argyle canyons.

U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States UT

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
UT Duchesne (49013)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
14 Duchesne (14060003)+, Strawberry (14060004)+, Lower Green-Desolation Canyon (14060005)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A long-lived, clump-forming perennial, approximately 3 dm tall, with white stems, highly branched and spreading. Leaves dark green. Flowers yellow with 10 large petals; 1-3 flowers per inflorescence. Blooms in July.
General Description: A long-lived, clump-forming perennial, approximately 3 dm tall, with white stems, highly branched and spreading. Leaves dark green. Flowers yellow with 10 large petals; 1-3 flowers per inflorescence. Blooms in July.
Terrestrial Habitat(s): Bare rock/talus/scree, Forest/Woodland, Shrubland/chaparral, Woodland - Conifer
Habitat Comments: Steep, white, marly, calciferous shale outcrops of the Green River Formation with scattered limber pine, pinyon pine, Douglas fir, mountain mahogany, and rabbitbrush, along escarpment of Willow and Argyle canyons, at 2470-2685 m, mostly southern exposures (Welsh 1993).
Economic Attributes Not yet assessed
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Management Summary
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Stewardship Overview: Monitor population trends. Further document the species' range, status and threats. Any changes to the area should be carefully planned to avoid damaging plants or habitat. Revisit sites to confirm status and level of threats.
Population/Occurrence Delineation
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Minimum Criteria for an Occurrence: A natural occurrence of one or more plants.
Separation Barriers: EOs are separated by either: 1 kilometer or more across unsuitable habitat or altered and unsuitable areas; or 2 kilometers or more across apparently suitable habitat not known to be occupied.
Separation Distance for Unsuitable Habitat: 1 km
Separation Distance for Suitable Habitat: 2 km
Separation Justification: The rationale for this large a separation distance across suitable but apparently unoccupied habitat is that it is likely additional research will find this habitat to be occupied. It can often be assumed that apparently unconnected occurrences will eventually be found to be more closely connected. No information on mobility of pollen and propagules is available on which to base the separation distance for this species.
Date: 16May2002
Author: Ben Franklin
Population/Occurrence Viability
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Excellent Viability: SIZE: There are no quantitative data available for this species. CONDITION: The occurrence has an excellent likelihood of long-term viability as evidenced by the presence of multiple age classes and evidence of flowering and fruiting, indicating that the reproductive mechanisms are intact. This occurrence should be in a high-quality site with less than 1% cover of exotic plant species and/or no significant anthropogenic disturbance. LANDSCAPE CONTEXT: The occurrence is surrounded by an area that is unfragmented and includes the ecological processes needed to sustain this species. This species is known to grow exclusively in a matrix of pinyon-juniper woodlands on "[s]teep, white, marly calciferous shale outcrops of the Green River Formation" (Welsh et al. 1993). It is endemic to the west end of Bad Land Cliffs, Tavaputs Plateau.
Good Viability: SIZE: There are no quantitative data available for this species. CONDITION: There are no quantitative data available for this species. LANDSCAPE CONTEXT: The occurrence should have a good likelihood of long-term viability as evidenced by the presence of multiple age classes and evidence of flowering and fruiting, indicating that the reproductive mechanisms are intact. Anthropogenic disturbance within the occurrence is minimal. If exotic species are present, they comprise less than 10% of the total ground cover.
Fair Viability: SIZE: The surrounding landscape should contain the ecological processes needed to sustain the occurrence but may be fragmented and/or impacted by humans. CONDITION: There are no quantitative data available for this species. LANDSCAPE CONTEXT: The occurrence may be less productive than the above situations, but is still viable, with multiple age classes and evidence of flowering and fruiting, indicating that the reproductive mechanisms are intact. The occupied habitat is somewhat degraded (exotic plant species make up between 10-50% of the total ground cover and/or there is a moderate level of anthropogenic disturbance).
Poor Viability: SIZE: There may be significant human disturbance, but the ecological processes needed to sustain the species are still intact. CONDITION: There are no quantitative data available for this species. LANDSCAPE CONTEXT: Little or no evidence of successful reproduction is observed (poor seedling recruitment, no flowering or fruiting observed, or poor age class distribution). Exotic plant species make up greater than 50% of the total ground cover, and/or there is a significant level of human disturbance.
Justification: SIZE: Large populations in high quality sites are presumed to contain a high degree of genetic variability, to have a low susceptibility to the effects of inbreeding depression, and to be relatively resilient. EOs not meeting "C"-rank criteria are likely to have a very high probability of inbreeding depression and extirpation due to natural stochastic processes and/or occur in degraded habitat with low long-term potential for survival. CONDITION: Large populations in high quality sites are presumed to contain a high degree of genetic variability, to have a low susceptibility to the effects of inbreeding depression, and to be relatively resilient. EOs not meeting "C"-rank criteria are likely to have a very high probability of inbreeding depression and extirpation due to natural stochastic processes and/or occur in degraded habitat with low long-term potential for survival. LANDSCAPE CONTEXT: Large populations in high quality sites are presumed to contain a high degree of genetic variability, to have a low susceptibility to the effects of inbreeding depression, and to be relatively resilient. EOs not meeting "C"-rank criteria are likely to have a very high probability of inbreeding depression and extirpation due to natural stochastic processes and/or occur in degraded habitat with low long-term potential for survival.
Key for Ranking Species Element Occurrences Using the Generic Approach (2008).
U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 25Jul1996
NatureServe Conservation Status Factors Author: J. Beckman, rev. B. Franklin (1996), rev. A. Tomaino (2009), rev. M. Russo (2011)
Management Information Edition Date: 22Sep2011
Management Information Edition Author: Russo, M.

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
Help
  • Franklin, M.A. 2005. Plant information compiled by the Utah Natural Heritage Program: A progress report. Publication Number 05-40. Utah Division of Wildlife Resources, Salt Lake City, Utah. 341 pp. [http://dwrcdc.nr.utah.gov/ucdc/ViewReports/plantrpt.htm]

  • Huber, A. 1997. Maps (photocopied) - provided in response to letter from Ben Franklin: sensitive species information. Unpaginated (22 pp.).

  • Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.

  • Welsh, S. L. 1993 [1994]. New taxa and new nomenclatural combinations in the Utah flora. Rhodora 95(883/884): 392-421.

  • Welsh, S.L. 1993. New taxa and new nomenclatural combinations in the Utah flora. Rhodora 95(883/884):392-421.

  • Welsh, S.L., N.D. Atwood, S. Goodrich, and L.C. Higgins (eds.) 1993. A Utah flora. 2nd edition. Brigham Young Univ., Provo, Utah. 986 pp.

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