Montana Field Guide

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- Kingdom - Plants - Plantae
  - Division - Flowering Plants - Anthophyta
    - Class - Dicots - Dicotyledoneae
      - Order - Heaths / Wintergreens / Monotropes - Ericales
        
        Family - Heath Family - Ericaceae
        
        Species - One-flower Wintergreen - Moneses uniflora

One-flower Wintergreen - Moneses uniflora

Other Names: Pyrola uniflora

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Native Species

Global Rank: G5
State Rank: S4
C-value: 8

Agency Status
USFWS:
USFS:
BLM:

External Links

General Description

Small, caulescent, evergreen herbaceous subshrub from a slender, rhizome-like root. Stems herbaceous, unbranched, erect, to ca. 4 cm in flower. Leaves in whorls of 3, petiolate, suborbicular, to 2 cm long, dark green. Inflorescence: a solitary, nodding flower from a terminal bud on last year’s stem, becoming erect in fruit; peduncle elongating in fruit. Flowers perfect, regular, hypogynous, 5-merous, corolla saucer-shaped; calyx lobes oval, whitish; petals distinct, ovate, to 10 mm long, white; stamens 10; stigma star-shaped, with 5 erect, marginal lobes; style straight; ovary superior. Fruit a globose, 5-chambered capsule (Stickney in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range

Montana Range Range Descriptions

Native

Range Comments

Circumboreal south to CA, AZ, NM, SD, MN, WS, OH and NY (Stickney in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database

Number of Observations: 269

(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

Moist, deeply shaded coniferous forests, often in moss of riparian spruce forest; valleys to subalpine (Stickney in Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Stewardship Responsibility

References

Literature Cited AboveLegend: View Online Publication
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?
- Culver, D.R. 1994. Floristic analysis of the Centennial Region, Montana. M.Sc. Thesis. Montana State University, Bozeman. 199 pp.
- Fultz, J.E. 2005. Effects of shelterwood management on flower-visiting insects and their floral resources. M.Sc. Thesis. Bozeman, MT: Montana State University. 163 p.
- Jones, W. W. 1901. Preliminary flora of Gallatin County. M.S. Thesis. Bozeman, MT: Montana State College. 78 pp.
- Lesica, P., M.T. Lavin, and P.F. Stickney. 2022. Manual of Montana Vascular Plants, Second Edition. Fort Worth, TX: BRIT Press. viii + 779 p.
- Simanonok, M. 2018. Plant-pollinator network assembly after wildfire. Ph.D. Dissertation. Bozeman, MT: Montana State University. 123 p.
- Simanonok, M.P. and L.A. Burkle. 2019. Nesting success of wood-cavity-nesting bees declines with increasing time since wildfire. Ecology and Evolution 9:12436-12445.
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Citation for data on this website:
One-flower Wintergreen — Moneses uniflora. Montana Field Guide. Montana Natural Heritage Program. Retrieved on April 24, 2025, from https://FieldGuide.mt.gov/speciesDetail.aspx?elcode=PDPYR02010

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