Columbia Lily - Lilium columbianum
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
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.
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 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX)
Flowering June and July.
BC to MT south to CA. Known from Lincoln County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
(Observations spanning multiple months or years are excluded from time charts)
- 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.