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Montana Field Guide

Montana Field Guides

Great Plains Stickseed - Lappula cenchrusoides
Other Names:  Lappula fremontii var. fremontii

Native Species

Global Rank: G4
State Rank: S3S4
(see State Rank Reason below)

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

External Links






State Rank Reason (see State Rank above)
Lappula cenchrusoides occurs in eastern Montana, and is being treated as a synonym of Lappula fremontii var. fremontii. Many populations were reported as common and as occurring in habitats that are common within Montana, such as clay soils in rolling grassland and in sagebrush steppe. Most Montana occurrences have been reported since 1973 which could reflect taxonomy more than its presence/absence. The taxonomy of Montana's specimens need to be clarified and more current information on locations, population sizes, habitat, and threats needs to be brought forth to further refine its status.
  • Details on Status Ranking and Review
    Great Plains Stickseed (Lappula cenchrusoides) Conservation Status Review
    Review Date = 10/29/2019
    View State Conservation Rank Criteria
    Range Extent

    ScoreF - 20,000-200,000 sq km (~8,000-80,000 sq mi)

    Comment103,563 square kilometers

    Area of Occupancy

    ScoreE - 26-125 4-km2 grid cells

    CommentPlant occurs in 32 of the 30,590 4x4 square-kilometer grid cells that cover Montana.

    Number of Populations

    ScoreC - 21 - 80

    Comment33 observations

    Number of Occurrences or Percent Area with Good Viability / Ecological Integrity

    ScoreC - Few (4-12) occurrences with excellent or good viability or ecological integrity

    CommentAt least 8 observations assumed to be of good viability based on comments of 'common' and 'abundant'.

    Threats

    ScoreD - Low

 
General Description
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Diagnostic Characteristics
The two rows of bristles (sometimes 3) on the nutlets are similar to L. squarrosa, but the latter has a longer corolla (2-3 mm) and shorter nutlets (3-4 mm long). Lappula occidentalis (often reported as L. redowskii) only has one row of bristles on the nutlets.

Species Range
Montana Range

Year-round
 


Range Comments
Known (2012) in ND and SD west of the MO River, nealy all of WY, and northeast UT (Rocky Mountain Herbarium website).

Observations in Montana Natural Heritage Program Database
Number of Observations: 33

(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
Dry soils in open areas (Flora of the Great Plains, 1986).

References
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Citation for data on this website:
Great Plains Stickseed — Lappula cenchrusoides.  Montana Field Guide.  .  Retrieved on , from