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Pink Coil-beaked Lousewort - Pedicularis contorta var. ctenophora
State Rank Reason (see State Rank above)
Restricted to extreme southwestern Montana where it is documented from a few populations. Limited data is available for the species and it may be more common than the few collections indicate.
- Details on Status Ranking and Review
Population Size
Score2 - Small: Generally 2,000-10,000 individuals.
CommentEstimated. Available observation and collection information provides little data on population levels.
Range Extent
Score2 - Regional or State Endemic or Small Montana Range: Generally restricted to an area <100,000 sq. miles (equivalent to 2/3 the size of Montana or less) or Montana contributes 50% or more of the species’ range or populations OR limited to 2-3 Sub-basins in Montana.
Area of Occupancy
Score2 - Low: Generally occurring in 4-10 Subwatersheds (6th Code HUC’s).
Environmental Specificity
Score1 - Moderate: Species is restricted to a specific habitat that is more widely distributed or to several restricted habitats and is typically dependent upon relatively unaltered, good-quality habitat (C Values of 5-7).
Trends
ScoreNA - Rank factor not assessed.
CommentTrends unknown, though populations are likely stable or experiencing only minor declines.
Threats
Score0-1 - Low to Medium.
Intrinsic Vulnerability
Score1 - Moderate Vulnerability: Specific biological attributes, unusual life history characteristics or limited reproductive potential makes the species susceptible to extirpation from stochastic events or other adverse impacts to its habitat and slow to recover.
Raw Conservation Status Score
Score
8 to 9 total points scored out of a possible 16 (Rarity factors and threats only).
General Description
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Species Range
Montana Range
Range Descriptions
Native
Range Comments
Variety ctenophora is a regional endemic of southwest Montana and north-central Wyoming.
Observations in Montana Natural Heritage Program Database
Number of Observations: 28
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Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
Wooded or open slopes and drier meadows in the montane to subalpine zones.
Ecological Systems Associated with this Species
Ecology
POLLINATORS The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
Bombus vagans,
Bombus appositus,
Bombus bifarius,
Bombus fervidus,
Bombus flavifrons,
Bombus frigidus,
Bombus melanopygus,
Bombus mixtus,
Bombus rufocinctus,
Bombus sylvicola,
Bombus occidentalis, and
Bombus kirbiellus (Plath 1934, Macior 1974, Wilson et al. 2010, Miller-Struttmann and Galen 2014, Williams et al. 2014).
Threats or Limiting Factors
STATE THREAT SCORE REASON
Reported threats to Montana’s populations of Pink Coil-beaked Lousewort are due to motorcycle recreation occurring in the vicinity of some populations. This area is closed to motorized travel in order to limit threats to vegetation as it is rich in rare subalpine and alpine plant species. However, motorized travel is repeatedly reported despite posted signs and attempts to encounter violators by law enforcement (MTNHP Threat Assessment 2021). At least slight population declines are expected if motorized activity remains unmitigated.
References
- Literature Cited AboveLegend:
View Online Publication
Macior, L.M. 1974. Pollination ecology of the Front Range of the Colorado Rocky Mountains. Melanderia 15: 1-59.- Miller-Struttmann, N.E. and C. Galen. 2014. High-altitude multi-taskers: bumble bee food plant use broadens along an altitudinal productivity gradient. Oecologia 176:1033-1045.
- Plath, O.E. 1934. Bumblebees and their ways. New York, NY: Macmillan Company. 201 p.
- Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ: Princeton University Press. 208 p.
- Wilson, J.S., L.E. Wilson, L.D. Loftis, and T. Griswold. 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70(2): 198-207.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
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