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Montana Field Guides

Thymeleaf Sandwort - Arenaria serpyllifolia
Other Names:  Thyme-leaved Sandwort

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 0


Agency Status
USFWS:
USFS:
BLM:


 

External Links






 
General Description
Annual with scabrous or short-hairy foliage. Stems 5–25 cm, branched at the base. Leaves ovate, sharp-pointed, 3–5 mm long, petiolate. Inflorescence open, leafy-bracteate, expanding in fruit. Flowers: sepals lanceolate ca. 3 mm long; petals ca. 2 mm long. Capsule 3–4 mm long, longer than the calyx (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range

Non-native
 


Range Comments
Throughout temperate North America. Introduced from Eurasia (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 66

(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
Often disturbed soil of grasslands, rock outcrops, along roads, trails; valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus melanopygus and Bombus sylvicola (Wilson et al. 2010, Koch et al. 2012, Williams et al. 2014).

Management

References
  • Literature Cited AboveLegend:   View Online Publication
    • Koch, J., J. Strange, and P. Williams. 2012. Bumble bees of the western United States. Washington, DC: USDA Forest Service, Pollinator Partnership. 143 p.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 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?
    • Bess, J.A. 1997. The leafhopper species assemblages associated with native and replanted grasslands in southwest Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 94 p.
    • Clark, D. 1991. The effect of fire on Yellowstone ecosystem seed banks. M.Sc. Thesis. Montana State University, Bozeman. 115 pp.
    • Cope, M.G. 1992. Distribution, habitat selection and survival of transplanted Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) in the Tobacco Valley, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p.
    • Johnson, T. W. 1982. An analysis of pack and saddle stock grazing areas in the Bob Marshall Wilderness. M.Sc.Thesis. Bozeman, MT: Montana State University. 105 p.
  • Web Search Engines for Articles on "Thymeleaf Sandwort"
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Citation for data on this website:
Thymeleaf Sandwort — Arenaria serpyllifolia.  Montana Field Guide.  .  Retrieved on , from