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Montana Field Guide

Montana Field Guides

Tansy Cinquefoil - Potentilla bipinnatifida


Global Rank: G5
State Rank: SNR

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

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General Description
Perennials from stout, branched caudex; stems 20-50 cm tall, erect or decumbent at base, pubescent with short and long hairs (spreading to ascending) or nearly glabrous. Petioles equaling or exceeding lenght of leaf blade. Basal leaves 10-25 cm, pinnate, often appearing digitate; leaflets 5-7(-9), crowded, up to 6 cm long by 3 cm wide, divided to nearly midrib, the segments 1.5-3.0 mm wide, greyish-green above and more or less pubescent (hairs long and short) or glabrous; lower surface whitish and tomentose with longer appressed (=sericeous) hairs or occasionally green and glabrous. Stem leaves similar to basal but short-petiolate. Inflorescnce open or congested, many-flowered. Flowers 6-10 mm diameter. Sepals 3-4 mm long, ovate, bractlets of epicalyx shorter and narrower than sepals. Petals obcordate to somewhat squarish, shorter than sepals, yellow. Achenes ca. 1 mm long (adapted from: Flora of Alberta, 1994, 2nd ed., revised).

Species Range
Unknown/Undetermined
 


Range Comments
MT east to MN, south to UT and CO (Kartesz in prep. 2012).

Summary of Observations Submitted for Montana
Number of Observations: 37

(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
Dry prairies and open slopes (Flora of Alberta, 1994, 2nd ed., revised).

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