Agoseris lackschewitzii - D. Henderson & R. Moseley
Pink Agoseris
Synonym(s): Agoseris aurantiaca var. carnea (Rydb.) Lesica
Taxonomic Status: Accepted
Unique Identifier: ELEMENT_GLOBAL.2.160856
Element Code: PDAST090C0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Aster Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Asterales Asteraceae Agoseris
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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: Agoseris lackschewitzii
Taxonomic Comments: FNA (vol. 19, 2006) includes Agoseris gaspensis and A. lackschewitzii in A. aurantiaca var. aurantiaca, while Kartesz (1994) treats them as distinct.
Conservation Status
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NatureServe Status

Global Status: G4Q
Global Status Last Reviewed: 21Mar1997
Global Status Last Changed: 21Mar1997
Rounded Global Status: G4 - Apparently Secure
Reasons: Limited in distribution to Fremont and Lemhi counties, Idaho and Montana. Also known from two mountain ranges in two Wyoming counties.
Nation: United States
National Status: NNR
Nation: Canada
National Status: N2N3 (16Sep2010)

U.S. & Canada State/Province Status
United States Idaho (S2), Montana (S3), Washington (S2?), Wyoming (S3)
Canada Alberta (S2), British Columbia (S2S3)

Other Statuses

Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Candidate (Low) (26Jan2015)

NatureServe Global Conservation Status Factors

Range Extent Comments: Regional endemic of SW Montana, EC Idaho, and N Wyoming.

Overall Threat Impact Comments: USFS: The only potential threat is livestock grazing.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Regional endemic of SW Montana, EC Idaho, and N Wyoming.

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

U.S. & Canada State/Province Distribution
United States ID, MT, WA, WY
Canada AB, BC

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
ID Clark (16033), Fremont (16043), Lemhi (16059)
WA Kittitas (53037), Okanogan (53047)
WY Big Horn (56003), Fremont (56013), Johnson (56019), Park (56029), Sheridan (56033), Sublette (56035), Teton (56039)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
10 Madison (10020007)+, Yellowstone Headwaters (10070001)+, Clarks Fork Yellowstone (10070006)+, Upper Wind (10080001)+, Nowood (10080008)+, Big Horn Lake (10080010)+, Upper Tongue (10090101)+, Middle Fork Powder (10090201)+, Crazy Woman (10090205)+, Clear (10090206)+
14 New Fork (14040102)+, Big Sandy (14040104)+
17 Okanogan (17020006)+, Methow (17020008)+, Upper Yakima (17030001)+, Snake headwaters (17040101)+, Greys-Hobock (17040103)+, Upper Henrys (17040202)+, Beaver-Camas (17040214)+, Middle Salmon-Panther (17060203)+, Lemhi (17060204)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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General Description: Pink Agoseris is a taprooted perennial with milky sap. Glabrous leaves are clustered at the base, and there are 1 to several leafless stems, 10-60 cm tall, arising from the center; leaves taper gradually to a long petiole, are narrowly lance-shaped, 5-25 cm long, and 10-25 cm wide. Flower heads resemble those of the common dandelion; they are solitary at the ends of the stems and composed entirely of deep pink to light purple ray flowers, ca. 15-20 mm long. Involucral bracts are narrowly lance-shaped, 10-15 mm long, villous, with non-glandular hairs, purple-striped, mottled, and obtuse-tipped. Fruits (achenes) have beaks 1/2 to 2/3 the length of their bodies. Fruits also resemble those of the dandelion; they are spindle-shaped, and the top tapers to a slender beak to which numerous, long, white bristles are attached.
Diagnostic Characteristics: Vegetatively, this plant resembles other members of the genus AGOSERIS, as well as species of MICROSERIS (NOTHOCALAIS), but it can be distinguished by its pink flowers. In fruit, it can be distinguished by a combination of involucral and achene characteristics.
Habitat Comments: Restricted to perennially wet montane meadows on a variety of substrates in which the soil is saturated throughout the growing season. Elevation is mid-montane to subalpine.
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: 26Jul1993
NatureServe Conservation Status Factors Author: Stoner, N. (1993)
Element Ecology & Life History Edition Date: 30Aug1994
Element Ecology & Life History Author(s): JM

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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  • Achuff, P. L. and L. S. Roe. 1992. Botanical survey of the Goat Flat proposed Research Natural Area, Deerlodge National Forest. Unpublished report to the Deerlodge National Forest. Montana Natural Heritage Program, Helena, MT. 31 pp.

  • Fertig, W. 1993. Pink agoseris (AGOSERIS LACKSCHEWITZII), a newly discovered sensitive plant species from the west slope of the Wind River Range, Bridger-Teton National Forest. [unpublished report]. Wyoming Natural Diversity Database, The Nature Conservancy, Laramie, WY. 15 pp.

  • Fertig, W., C. Refsdal, and J. Whipple. 1994. Wyoming rare plant field guide. Wyoming Rare Plant Technical Committee, Cheyenne. No pagination.

  • 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.

  • Layser, E. F. 1992. Onion Park Research Natural Area: botanical and ecological resources inventory, mapping and analysis. Unpublished report to Lewis and Clark National Forest.

  • Lesica, P. 1993g. Vegetation and flora of the Line Creek Plateau area, Carbon County, Montana. Unpublished report to USDA Forest Service, Intermountain Research Station. Montana Natural Heritage Program, Helena, Montana. 30 pp.

  • Lesica, P. 2012b. New combinations for the Montana flora. Journal of the Botanical Research Institute of Texas 6: 25-27.

  • Mathews, S.Y. 1989. Sensitive plant surveys, 1989: U.S. Forest Service, Region 1, Gallatin National Forest, Montana. Unpublished report to the USDA Forest Service, Gallatin National Forest, Bozeman, Montana. Montana Natural Heritage Program, Helena, MT. 85 pp.

  • Pavek, D. and L. A. Schassberger. 1990. Status review of Agoseris lackschewitzii. USDA Forest Service, Region 1, Gallatin National Forest. Unpublished report to the Gallatin National Forest. Montana Natural Heritage Program, Helena, Montana. 52 pp.

  • Spahr, R., L. Armstrong, D. Atwood, and M. Rath. 1991. Threatened, endangered, and sensitive species of the Intermountain Region. U.S. Forest Service, Intermountain Region, Ogden, UT.

  • Vanderhorst, J. and B. L. Heidel. 1995. Sensitive plant survey in the Tobacco Root Mountains, Madison County, Montana. Unpublished report to the Beaverhead and Deerlodge National Forests. Montana Natural Heritage Program. Helena, MT. 66 pp. plus appendices.

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