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Montana Field Guide

Montana Field Guides

Pygmy Short-horned Lizard - Phrynosoma douglasii

Potential Species of Concern
Native Species

Global Rank: G5
State Rank: SU
(see State Rank Reason below)

Agency Status

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State Rank Reason (see State Rank above)
This species has been documented in Montana one time. Data to assess the conservation status in Montana are not available, and further surveys to determine if the species is present are needed.
  • Details on Status Ranking and Review
    Pygmy Short-horned Lizard (Phrynosoma douglasii) Conservation Status Review
    Review Date = 05/13/2019
    Range Extent

    ScoreU - Unknown

    CommentRange is unknown

    Long-term Trend

    ScoreU - Unknown. Long-term trend in population, range, area occupied, or number or condition of occurrences unknown


    Short-term Trend

    ScoreU - Unknown. Short-term trend in population, range, area occupied, and number and condition of occurrences unknown.



    ScoreU - Unknown. The available information is not sufficient to assign degree of threat as above. (Severity, scope, and immediacy are all unknown, or mostly [two of three] unknown or not assessed [null].)


    Intrinsic Vulnerability

    ScoreB - Moderately Vulnerable. Species exhibits moderate age of maturity, frequency of reproduction, and/or fecundity such that populations generally tend to recover from decreases in abundance over a period of several years (on the order of 5-20 years or 2-5 generations); or species has moderate dispersal capability such that extirpated populations generally become reestablished through natural recolonization (unaided by humans).

    CommentModerately Vulerable due to difficulty repopualting exterpated popualtions and slow reproduction

    Environmental Specificity

    ScoreC - Moderate. Generalist. Broad-scale or diverse (general) habitat(s) or other abiotic and/or biotic factors are used or required by the species but some key requirements are scarce in the generalized range of the species within the area of interest.

    CommentSpecies is found across a range of shrub-steppe and xeric woodland habitats

    Raw Conservation Status Score

    Score Unknown

General Description
We do not yet have descriptive information on this species.  Please try the buttons above to search for information from other sources.

Species Range
Reported but Unconfirmed

Western Hemisphere Range


Observations in Montana Natural Heritage Program Database
Number of Observations: 1

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



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

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Citation for data on this website:
Pygmy Short-horned Lizard — Phrynosoma douglasii.  Montana Field Guide.  .  Retrieved on , from