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Montana Field Guide

Montana Field Guides

Leafy Dwarf Knotweed - Polygonum minimum


Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Annual. Stems branched, ascending, 1–15 cm. Leaves ovate, nearly sessile, 3–10 mm long; stipules 2–3 mm long, scabrous. Flowers ca. 2 mm long, 1 to 4, concealed in leaf axils; pedicels 2–3 mm long; tepals greenish, pink, or white. Achene 3-sided, ca. 2 mm long, shiny black (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC, AB south to CA and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 4

(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
Shallow, vernally wet soil of outcrops, open slopes, along streams; subalpine, alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Leafy Dwarf Knotweed — Polygonum minimum.  Montana Field Guide.  .  Retrieved on , from