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Montana Field Guide

Montana Field Guides

Slender-leaf Lovage - Ligusticum tenuifolium

Native Species

Global Rank: G5
State Rank: S4
C-value: 7

Agency Status


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General Description
Stems subscapose, ascending to erect, 10–70 cm, simple or few-branched. Herbage glabrous. Leaf blades bipinnate, 2–15 cm long; leaflets linear to deeply lobed, 2–7 mm long; ultimate segments mostly more than 3 times as long as wide. Umbels: rays 5 to 13, 5–30 mm long. Mericarps 2–3 mm long; marginal and dorsal wings up to 0.2 mm wide, plane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Range Comments
OR, ID, UT, MT and WY (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 54

(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)


The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus occidentalis (Pyke et al. 2012).

  • Literature Cited AboveLegend:   View Online Publication
    • Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Pyke, G.H., D.W. Inouye, and J.D. Thomson. 2012. Local geographic distributions of bumble bees near Crested Butte, Colorado: competition and community structure revisited. Environmental Entomology 41(6): 1332-1349.
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Citation for data on this website:
Slender-leaf Lovage — Ligusticum tenuifolium.  Montana Field Guide.  .  Retrieved on , from