Erigeron lackschewitzii - Nesom & W.A. Weber
Front Range Fleabane
Other English Common Names: Lackschewitz's fleabane
Taxonomic Status: Accepted
Related ITIS Name(s): Erigeron lackschewitzii G.L. Nesom & W.A. Weber (TSN 513036)
French Common Names: vergerette de Lackschewitz
Unique Identifier: ELEMENT_GLOBAL.2.158067
Element Code: PDAST3M5W0
Informal Taxonomy: Plants, Vascular - Flowering Plants - Aster Family
 
Kingdom Phylum Class Order Family Genus
Plantae Anthophyta Dicotyledoneae Asterales Asteraceae Erigeron
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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: Erigeron lackschewitzii
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 01Sep2009
Global Status Last Changed: 30Jul1999
Rounded Global Status: G3 - Vulnerable
Reasons: Regional endemic. Fourteen occurrences in Montana and one in Alberta.
Nation: United States
National Status: N3
Nation: Canada
National Status: N1 (20Sep2016)

U.S. & Canada State/Province Status
United States Montana (S3)
Canada Alberta (SU)

Other Statuses

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

NatureServe Global Conservation Status Factors

Range Extent Comments: Montana (Flathead, Lewis and Clark, Pondera, and Teton counties) and Alberta (Waterton Lakes National Park, Sofa Mountain).

Number of Occurrences: 1 - 5
Number of Occurrences Comments: In Montana there are 14 reported occurrences (Montana Natural Heritage Program, 1999). Only one occurrence known from Alberta (note from Joyce Gould, Alberta Nat. Heritage Info. Ctr, August 11/1999).

Overall Threat Impact Comments: Habitat is not prone to human disturbance; however, area is being searched for gas and oil.

Intrinsic Vulnerability Comments: Unknown.

Other NatureServe Conservation Status Information

Distribution
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Global Range: Montana (Flathead, Lewis and Clark, Pondera, and Teton counties) and Alberta (Waterton Lakes National Park, Sofa Mountain).

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

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

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
MT Flathead (30029), Glacier (30035), Granite (30039), Lewis and Clark (30049), Pondera (30073), Powell (30077), Teton (30099)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
09 St. Marys (09040001)+, Belly (09040002)+
10 Upper Missouri-Dearborn (10030102)+, Sun (10030104)+, Two Medicine (10030201)+, Teton (10030205)+
17 Upper Clark Fork (17010201)+, Flint-Rock (17010202)+, Middle Fork Flathead (17010207)+, South Fork Flathead (17010209)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: Taprooted perennial with unbranched stems 3-8 cm high and blue flowers.
General Description: Lackschewitz' Fleabane is a taprooted perennial with a simple or sparingly-branched rootcrown and curved, unbranched stems that are 3-8 cm high. The basal leaves are 2-6 cm long and narrowly spoon-shaped with pointed tips. The 5-10 stem leaves are gradually reduced upwards. Foliage is sparsely to densely covered with long white hairs. The solitary flower heads are 10-15 mm wide, and the involucral bracts are green, 6-8 mm long, and densely covered with long, white hairs and sessile glands. The 30-70 blue rays are 8-11 mm long and notched at the tips. The yellow disk corollas are 3-5 mm long. There are 15-24 pappus bristles at the top of the achenes. Flowering in July-early August, fruiting late July (Montana Natural Heritage Program, 1999).
Diagnostic Characteristics: The taprooted habit, bluish ray flowers, cauline leaves, and densely long-hairy involucre distinguish this species from most other ERIGERON in our area. Treated by some authors under E. OCHROLEUCUS, from which it differs by the conspicuously woolly involucre. Other differences involving basal leaves and crosswalls in the hairs based on description of the latter in the literature do not hold. (Montana Natural Heritage Program, 1999).
Habitat Comments: Open, gravelly, calcareous soil and talus on ridgetops in the alpine and subalpine zones (Montana Natural Heritage Program, 1999). In Alberta it is found on Dryas octopetala tundra; subxeric, rapidly drained Orthic Regosol on colluvial veneer over inclined rock; with Senecio ocnterminus and Erigeron compositus (note from Joyce Gould, Alberta Nat. Heritage Info. Ctr, August 11/1999).
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: 30Jul1999
NatureServe Conservation Status Factors Author: Shelly, J.S., and P. Lesica

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
  • 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.

  • Montana Natural Heritage Program. 1999. Last updated July 1. Species Information Online. Available at: http://orion2.nris.state.mt.us/mtnhp/plants/index.html

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