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Montana Field Guide

Montana Field Guides

Brook Cinquefoil - Potentilla rivalis


Global Rank: G5
State Rank: SNR

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

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General Description
Taprooted annual or biennial. Stems erect, branched, villous, 10–30 cm. Leaf blades broadly obovate, pinnately divided into 3 to 5 oblong, coarsely dentate, villous leaflets, 1–3 cm long. Inflorescence a leafy, villous, many-flowered cyme. Flowers: sepals deltoid, 2–3 mm long; bracteoles narrower, ca. as long; petals light yellow, 1–2 mm long, shorter than the sepals. Achenes smooth, <1 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC to SK south to CA, AZ, NM, TX and MO (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
Pond margins, disturbed moist meadows; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Brook Cinquefoil — Potentilla rivalis.  Montana Field Guide.  .  Retrieved on , from