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Montana Field Guide

Montana Field Guides

Western Dock - Rumex occidentalis
Other Names:  Rumex aquaticus var. fenestratus


Global Rank: G5T5
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






 
General Description
Mostly glabrous perennial. Stems erect, simple, 50–120 cm, >6 mm wide. Leaf blades 5–25 cm long, lanceolate with a truncate to cordate base and wavy margins. Inflorescence 15–40 cm long, a leafy-bracted panicle of ascending branches. Flowers perfect; outer tepals 2–3 mm long. Fruit 5–10 mm long; inner tepals ovate without a callosity. Achenes reddish brown, 3–5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
AK to QC south to CA, NV, NM and SD (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 4

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Relative Density

Recency

 

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



Habitat

References
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Citation for data on this website:
Western Dock — Rumex occidentalis.  Montana Field Guide.  .  Retrieved on , from