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Montana Field Guide

Montana Field Guides

Mountain Lousewort - Pedicularis pulchella

Species of Concern

Global Rank: G3
State Rank: S3
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

External Links






State Rank Reason (see State Rank above)
Restricted to high elevation areas of southern Montana. Limited data are available for the species and it may be more common than the few collections indicate.
  • Details on Status Ranking and Review
    Mountain Lousewort (Pedicularis pulchella) Conservation Status Review
    Review Date = 05/04/2013
    View State Conservation Rank Criteria
    Population Size

    Score2 - Small: Generally 2,000-10,000 individuals.

    CommentEstimated. Population levels are largely undocumented as available observation data and specimen collections have little to no data on abundance.

    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

    Score1-2 - Low to Moderate. Occurs in 4-25 Subwatersheds (6th Code HUC’s), though the species' distribution is not sufficiently documented to place it within one class.

    CommentDocumented from 7 subwatersheds. As additional suitable habitat exists, it seems likely that others will be documented with additional surveys.

    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 7 to 9 total points scored out of a possible 16 (Rarity factors and threats only).

 
General Description
Stems 3–15 cm, often clustered on the caudex. Leaves mainly basal, 2–5 cm long; blades deeply pinnately lobed into lobed and serrate, ovate segments 1–7 mm long. Inflorescence villous, densely flowered, 2–5 cm long; bracts leaf-like. Flowers: calyx purple-veined, 8–10 mm long, 5-lobed, the lobes equal, 2–5 mm long; corolla purple, 18–24 mm long; galea 8–13 mm long, obscurely beaked. Capsule 4-10 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
Endemic to southwest MT and adjacent WY (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 17

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Turf, fellfields, meadows; upper subalpine, alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Ecological Systems Associated with this Species

References
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Citation for data on this website:
Mountain Lousewort — Pedicularis pulchella.  Montana Field Guide.  .  Retrieved on , from