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Montana Field Guide

Montana Field Guides

Columbia Lily - Lilium columbianum

Species of Concern
Native Species

Global Rank: G5
State Rank: S2
(see State Rank Reason below)
State Threat Score: No Known Threats
CCVI: Moderately Vulnerable

Agency Status


External Links

State Rank Reason (see State Rank above)
Lilium columbianum is currently only known from Lincoln County, where six locations have been documented in the 1970's and 1980's. This species is vulnerable to extirpation in Montana because its attractiveness, potential to be over-collected, and limited range. Native lilies have rarely survived in gardens. Current information on known locations is greatly needed.
  • Details on Status Ranking and Review
    Columbia Lily (Lilium columbianum) Conservation Status Review
    Review Date = 08/31/2017
    View State Conservation Rank Criteria
    Range Extent

    ScoreC - 250-1,000 sq km (~100-400 sq mi)

    Area of Occupancy

    ScoreD - 6-25 4-km2 grid cells

    Number of Populations

    ScoreB - 6 - 20

    Number of Occurrences or Percent Area with Good Viability / Ecological Integrity

    ScoreB - Very few (1-3) occurrences with excellent or good viability or ecological integrity


    ScoreC - Medium

    CommentThreat categories include: Timber harvesting, roads building/maintenance, and mowing.

General Description
Stems 40–100 cm. Leaves lanceolate, 3–8 cm long. Flowers nodding, 2 to 5; tepals yellowish with black-spotted bases, lanceolate, 35–45 mm long, reflexed; stamens exserted. Capsule cylindric 3–4 cm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Flowering June and July.

Species Range
Montana Range Range Descriptions


Range Comments
BC to MT south to CA. Known from Lincoln County (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 12

(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)

Predicted Suitable Habitat Model

This species has a Predicted Suitable Habitat Model available.

To learn how these Models were created see

Threats or Limiting Factors
Threat impact not assigned because threats are not known (MTNHP Threat Assessment 2021).

  • Literature Cited AboveLegend:   View Online Publication
    • Douglas, G.W., D. Meidinger, and J. Pojar, editors. 2001. The Illustrated Flora of British Columbia. Volume 6. Monocotyledons (Acoraceae through Najadaceae). British Columbia Ministry of Environment, Lands and Parks and British Columbia Ministry of Forests, Victoria.
    • 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?
    • 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:
Columbia Lily — Lilium columbianum.  Montana Field Guide.  .  Retrieved on , from