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Montana Field Guide

Montana Field Guides

Arrowleaf Sweet Coltsfoot - Petasites frigidus var. sagittatus
Other Names:  Petasites sagittatus

Native Species

Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 8

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General Description
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Species Range
Present
 


Range Comments
Alaska to Labrador, south to Oregon, Colorado, Minnesota and southern Ontario.

Observations in Montana Natural Heritage Program Database
Number of Observations: 130

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Relative Density

Recency

 

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



Habitat
Swamps, fen margins, and riparian seeps within open forest and meadows in the valley and foothill zones.

Ecology
POLLINATORS
The following animal species have been reported as pollinators of this species or genera where their geographic ranges overlap: Bombus sylvicola (Thorp et al. 1983, Williams et al. 2014).

References
  • Literature Cited AboveLegend:   View Online Publication
    • Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
    • Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ. Princeton University Press.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Arrowleaf Sweet Coltsfoot — Petasites frigidus var. sagittatus.  Montana Field Guide.  .  Retrieved on , from