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Montana Field Guide

Montana Field Guides

Narrowleaf Dock - Rumex stenophyllus

Non-native Species

Global Rank: GNR
State Rank: SNA
C-value: 1

Agency Status


External Links

General Description
Glabrous perennial. Stems erect, branched, 25–80 cm. Leaf blades lanceolate, 5–25 cm long. Inflorescence a narrow, leafy-bracted panicle with erect, branches and flowers in whorls of 20 to 25. Flowers perfect; outer tepals 1–2 mm long. Fruit 3–5 mm long; inner tepals ovate-deltoid with a callosity on each and denticulate margins. Achene reddish brown, 2–3 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions


Range Comments
Introduced throughout most of northern U.S. and southern Canada; native to 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: 49

(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)

Predicted Suitable Habitat Model

This species has a Predicted Suitable Habitat Model available.

To learn how these Models were created see


  • 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.
  • Additional ReferencesLegend:   View Online Publication
    Do you know of a citation we're missing?
    • Eggers, M.J.S. 2005. Riparian vegetation of the Montana Yellowstone and cattle grazing impacts thereon. M.Sc. Thesis. Montana State University, Bozeman, MT. 125 p.
  • Web Search Engines for Articles on "Narrowleaf Dock"
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Citation for data on this website:
Narrowleaf Dock — Rumex stenophyllus.  Montana Field Guide.  .  Retrieved on , from