Pyrrocoma carthamoides var. subsquarrosa - (Greene) G. Brown & Keil
Large-flower Goldenweed
Synonym(s): Haplopappus carthamoides var. subsquarrosus (Greene) Dorn
Taxonomic Status: Accepted
Related ITIS Name(s): Pyrrocoma carthamoides var. subsquarrosa (Greene) G. Brown & Keil (TSN 531107)
Unique Identifier: ELEMENT_GLOBAL.2.156272
Element Code: PDASTDT023
Informal Taxonomy: Plants, Vascular - Flowering Plants - Aster Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Asterales Asteraceae Pyrrocoma
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Concept Reference
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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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Pyrrocoma carthamoides var. subsquarrosa
Taxonomic Comments: USFWS tracks as Haplopappus carthamoides var. subsquarrosus (9/93).
Conservation Status
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NatureServe Status

Global Status: G4G5T3
Global Status Last Reviewed: 26Oct2012
Global Status Last Changed: 23Apr2012
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: T3 - Vulnerable
Reasons: Pyrrocoma carthamoides ssp. subsquarrosa is a regional endemic of southwest Montana and northwest Wyoming. Recent review of this taxon in 2012 by botanists in both Montana and Wyoming indicate that its populations are stable. Threats are few given its remote habitat, however, highway construction encroaches on some areas near this taxon. Other potential threats include oil, gas, and housing development.
Nation: United States
National Status: N3

U.S. & Canada State/Province Status
United States Montana (S3), Wyoming (S2)

Other Statuses

NatureServe Global Conservation Status Factors

Range Extent Comments: Regional endemic of southwest Montana and the Absaroka Mountains of northwest Wyoming.

Number of Occurrences: 21 - 80
Number of Occurrences Comments: 13 occurrences documented by herbarium specimens in WY (2000); 23+ occurrences in Montana with excellent viability (NatureServe element occurrence data 2012).

Population Size Comments: Bald Ridge and Robertson Draw populations are large, the latter ca. 100,000. But total occupied habitat is less than 5,000 acres in Montana (1999). Total population number in Wyoming may be 100,000 (Fertig and Mills 2000).

Number of Occurrences with Good Viability/Integrity: Some (13-40)

Overall Threat Impact Comments: Some of its habitat is disturbed by highway construction and competition with weeds (Fertig and Mills 2000). Potentially affected by fire suppression, residential development and oil and gas development. Existing threats are few, due to distribution in wilderness areas, and limited if any sensitivity to grazing.

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: Believed to be stable (pers. comm. S. Mincemoyer 4/2012, Heidel 2012, Fertig and Mills 2000).

Long-term Trend: Unknown

Intrinsic Vulnerability Comments: Habitat is fairly resilient.

Environmental Specificity: Narrow. Specialist or community with key requirements common.
Environmental Specificity Comments: Occurs at high elevations (6,000 - 10,600 ft) in open meadows, slopes and ridges on sandstone, limestone or volcanic soil (Fertig and Mills 2000).

Other NatureServe Conservation Status Information

Distribution
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Global Range: Regional endemic of southwest Montana and the Absaroka Mountains of northwest Wyoming.

U.S. States and Canadian Provinces
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States MT, WY

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MT Carbon (30009)
WY Park (56029)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Clarks Fork Yellowstone (10070006)+, North Fork Shoshone (10080012)+, Shoshone (10080014)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A moderately low perennial herb with relatively large yellow heads.
Habitat Comments: Grassland or sagebrush grassland, often on calcareous soils.
Economic Attributes Not yet assessed
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Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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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: 26Oct2012
NatureServe Conservation Status Factors Author: Marriott, H.J., rev. D. Gries (1997), B. Heidel (1999), rev. L. Oliver, S. Mincemoyer, B. Heidel (2012)

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
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  • Andersen, M.D. and B. Heidel. 2011. HUC-based species range maps. Prepared by Wyoming Natural Diversity Database for use in the pilot WISDOM application operational from inception to yet-to-be-determined date of update of tool.

  • Beatty, B. L., W. F. Jennings, and R. C. Rawlinson. 2004. Pyrrocoma carthamoides Hook. var. subsquarrosa (Greene) G. Brown & Keil (largeflower goldenweed): A Technical Conservation Assessment. USDA Forest Service, Rocky Mountain Region. http://www.fs.fed.us/r2/projects/scp/assessments/Pyrrocomacarthamoidesvarsubsquarrosa.pdf.

  • Bogler, D. J. 2006. Pyrrocoma.In: Flora of North America Editorial Committee, eds. 1993+. Flora of North America North of Mexico. Vol. 19. Magnoliophyta: Asteridae (in part): Asteraceae part 1. Oxford University Press, New York and Oxford. pp 413-424.

  • Brown, G. K. and D. J. Keil. 1992. New combinations in Pyrrocoma (Asteraceae: Astereae). Phytologia 73:57-58.

  • Cronquist, A. 1955. Vascular Plants of the Pacific Northwest, Part 5: Compositae. Pages 1-343. University of Washington Press, Seattle, WA.

  • Dorn, R. D. 2001. Vascular Plants of Wyoming, third edition. Mountain West Publishing, Cheyenne, WY.

  • Evert, E. F. 2010. Vascular Plants of the Greater Yellowstone Area: Annotated Catalog and Atlas. Park Ridge, IL.

  • Fertig, W. 1993. U. S. Fish and Wildlife Service candidate plant species of Wyoming. Unpublished report prepared for Wyoming Weed and Pest Supervisor's meeting in Cody, WY, March 1993.

  • Fertig, W. 1994. Guide to Sensitive Wyoming plants of US Forest Service Region 2 (with emphasis on plants of Bighorn, Medicine Bow, and Shoshone National Forests). Unpublished report prepared as a handout for the TES species identification workshop conducted for US Forest Service Region 2 in Laramie, WY, 11 May 1994.

  • Fertig, W. 1995. Report on the potential vulnerability of Shoshone National Forest Candidate and Sensitive plant species to livestock grazing. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1997. Plant species of special concern on Shoshone National Forest: 1996 survey results. Unpublished report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 1998. The status of rare plants on Shoshone National Forest: 1995-97 survey results. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. 2000. Rare vascular plant species in the Wyoming portion of the Utah-Wyoming Rocky Mountains Ecoregion. Prepared for the Wyoming Nature Conservancy by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. and M. Bynum. 1994. Biological report on the Proposed Bald Ridge Research Natural Area. Unpublished report prepared for the Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Fertig, W. and S. Mills. 2000. State Species Abstract: Pyrrocoma carthamoides var. subsquarrosa. Wyoming Natural Diversity Database. Available on the internet at www.uwyo.edu/wyndd.

  • Fertig, W. and S.Mills. 2000. State Species Abstract. Wyoming Natural Diversity Database. Pyrrocoma carthamoides var. subsquarrosa. Absaroska goldenweed. Accessed online on 10/26/2012 at: http://www.uwyo.edu/wyndd/_files/docs/reports/speciesabstracts/pyrrocoma_carthamoides_subsquarrosa.pdf.

  • Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming Rare Plant Field Guide. Wyoming Rare Plant Technical Committee, Cheyenne, WY.

  • Greene, E.L. 1895. Novitates Occidentales. X. Erythea 3: 17-24.

  • Hall, H. M. 1928. The genus Haplopappus: a phylogenetic study in the Compositae. Carnegie Institute of Washington.

  • Heidel, B. 2012a. Wyoming Plant Species of Concern List. Wyoming Natural Diversity Database, University of Wyoming. Accessed online at: www.uwyo.edu/wyndd/

  • Houston, K.E., W.J. Hartung and C.J. Hartung. 2001. A field guide for forest indicator plants, sensitive plants, and noxious weeds of the Shoshone National Forest, Wyoming. Gen. Tech. Rep. RMRS-GTR-84, Ogden, UT: USDA Forest Service Rocky Mountain Research Station.

  • Jones, G. P. 1991. Report on the Proposed Bald Ridge Special Botanical Area. Unpublished report prepared for the USDA Forest Serivce, Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Jones, G. P. and W. Fertig. 1999. Ecological evaluation of the potential Pat O?Hara Mountain Research Natural Area within the Shoshone National Forest, Park County, Wyoming. Unpublished report prepared for the Shoshone National Forest, USDA Forest Service by the Wyoming Natural Diversity Database, Laramie, WY.

  • 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.

  • Lesica, P. 1995. Conservation status of HAPLOPAPPUS CARTHAMOIDES VAR SUBSQUARROSUS in Montana. Unpublished report prepared for the US Forest Service and Bureau of Land Management by the Montana Natural Heritage Program, Helena, MT. 22 pp + appendices.

  • Mayes, R. A. 1977. A cytotaxonomic and chemosystematic study of the genus Pyrrocoma (Asteraceae: Astereae). PhD Dissertation. University of Texas, Austin, TX.

  • Mills, S. and W. Fertig. 1996. Field guide to rare and Sensitive plants of the Shoshone National Forest. Report prepared by the Wyoming Natural Diversity Database, Laramie, WY.

  • Mills, S. and W. Fertig. 1996. Survey of plant species of special concern on the Shoshone National Forest, 1995. Unpublished report prepared for Shoshone National Forest by the Wyoming Natural Diversity Database, Laramie, WY.

  • Rosenthal, D. M. 1998. Report on a general floristic survey of vascular plants in selected areas of Shoshone National Forest. Unpublished report prepared for the Shoshone National Forest by the Rocky Mountain Herbarium, University of Wyoming, Laramie, WY.

  • Rosenthal, D. M. 1999. A floristic survey of selected areas in Shoshone National Forest, Wyoming. Masters Thesis. Department of Botany, University of Wyoming, Laramie, WY.

  • Rydberg, P.A. 1900. Studies on the Rocky Mountain Flora III. Bulletin Torrey Botanical Club 27:614-636.

  • Welp, L., W.F. Fertig, G.P. Jones, G.P. Beauvais, and S.M. Ogle. 2000. Fine filter analysis of the Bighorn, Medicine Bow, and Shoshone National Forests in Wyoming. Wyoming Natural Diversity Database, Laramie, WY.

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