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Montana Field Guides

Squashberry - Viburnum edule

Native Species

Global Rank: G5
State Rank: S4
(see State Rank Reason below)
C-value: 8

Agency Status


External Links

State Rank Reason (see State Rank above)
Viburnum edulis is a boreal species that occurs in northwest, north-central, and southwest (in vicinities of Yellowstone National Park and Beartooth Plateau) Montana. Although documented locations are scattered, the available information suggests that populations are stable with few, if any, threats. Current data on locations, population sizes, and threats are needed.
  • Details on Status Ranking and Review
    Squashberry (Viburnum edule) Conservation Status Review
    Review Date = 09/04/2018
    View State Conservation Rank Criteria
    Range Extent

    ScoreF - 20,000-200,000 sq km (~8,000-80,000 sq mi)

    Area of Occupancy

    ScoreD - 6-25 4-km2 grid cells

    Number of Populations

    ScoreC - 21 - 80

    Environmental Specificity

    ScoreA - Very narrow. Specialist or community with key requirements scarce


    ScoreD - Low

General Description
Stems spreading to erect, branched, 50–200 cm; twigs brown, glabrous. Leaves exstipulate; blades broadly ovate, mostly 3-lobed above, serrate, 3–10 cm long, sparsely hirsute, sunken-glandular beneath; lobes acute. Inflorescence 1–3 cm across. Flowers: corolla campanulate to rotate, deeply lobed, 2–3 mm long. Drupe red or orange, 7–10 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Montana Range Range Descriptions


Range Comments
AK to NL south to OR, CO, MN and PA (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 68

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density



(Observations spanning multiple months or years are excluded from time charts)

Moist forest, often near streams; montane, lower subalpine (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap: Bombus pensylvanicus and Bombus griseocollis (Colla and Dumesh 2010).

  • Literature Cited AboveLegend:   View Online Publication
    • Colla, S.R. and S. Dumesh. 2010. The bumble bees of southern Ontario: notes on natural history and distribution. Journal of the Entomological Society of Ontario 141:39-68.
    • 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.
    • 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.
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Citation for data on this website:
Squashberry — Viburnum edule.  Montana Field Guide.  .  Retrieved on , from