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Montana Field Guide

Montana Field Guides

Kidney-leaf White Violet - Viola renifolia

Status Under Review

Global Rank: G5
State Rank: S3?
* (see State Rank Reason below)

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 8

External Links






State Rank Reason (see State Rank above)
Known from several dozen locations in western Montana.
 
General Description
Kidney-leaf White Violet lacks stems and rhizomes. The leaves and flower stalks arise from a short rootstock. The leaves have petioles that are 3-15 cm long and blades that are orbicular and broadly heart-shaped at the base, coarsely toothed, and 2-6 cm wide. The foliage is sparsely to heavily pubescent. The flower stalks are shorter than the leaves. Flowers are white and 10-15 mm long. Petals are glabrous within, and the lower three are lined with purple.

Lesica (2012) indicates that many plants only produce cleistogamous flowers (those that never open for pollination).

Phenology
Flowering in June-July.

Diagnostic Characteristics
Viola palustris and V. macloskeyi are white-flowered, stemless species that could occur in the same habitat, but both have stolons, unlike V. renifolia.

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 143

(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
Swampy or boggy soil in forests in the montane zone.

References
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Citation for data on this website:
Kidney-leaf White Violet — Viola renifolia.  Montana Field Guide.  .  Retrieved on , from