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Montana Field Guides

Kalm's Lobelia - Lobelia kalmii

Species of Concern
Native Species

Global Rank: G5
State Rank: S3
(see State Rank Reason below)
State Threat Score: No Known Threats
C-value: 5

Agency Status


External Links

State Rank Reason (see State Rank above)
Lobelia kalmii occurs in fens and other high-organic wetlands in northwest, central, and northeast Montana. Approximately 34 observations have been made at about 23 unique locations. The central Montana location has not been observed since 1934. Current observation, population size, and threat information at documented sites is needed.
  • Details on Status Ranking and Review
    Kalm's Lobelia (Lobelia kalmii) Conservation Status Review
    Review Date = 09/01/2017
    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

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

    ScoreC - Few (4-12) occurrences with excellent or good viability or ecological integrity

    Environmental Specificity

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


    ScoreD - Low

    CommentNo known threats.

General Description
Stems erect, usually simple, 10–40 cm. Herbage glabrate. Basal leaves petiolate, spatulate, entire to obscurely dentate, 1–3 cm long. Stem leaves becoming linear-lanceolate, 1–4 cm long. Inflorescence of <10 flowers; pedicels bracteate. Flowers: sepals lanceolate, 2–3 mm long; corolla 5–10 mm long, blue, whitish at top of the tube. Capsule obconic, 4–7mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Diagnostic Characteristics
Plants slender rarely over 4 dm tall, flowers 7-16 mm long, pedicels with a pair of subopposite bractioles; corolla not normally fenestrate, base of lower lip smooth; capsule ovoid, seeds rough tuberculate.

Species Range
Montana Range


Range Comments
YT to NL south to WA, MT, 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: 34

(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)

Organic soil of wet meadows, fens; valleys, montane (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Predicted Suitable Habitat Model

This species has a Predicted Suitable Habitat Model available.

To learn how these Models were created see

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

Threats or Limiting Factors
Threat impact not assigned because threats are not known.

  • Literature Cited AboveLegend:   View Online Publication
    • Britton, N. L. and A. B. Brown. 1913. An Illustrated Flora of the Northern United States, Canada, and the British Possessions. 2nd Edition in 3 Volumes. New York, NY: Charles Scribner's Sons. B13BRI01PAUS.
    • 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.
    • Hitchcock, C. L., A. Cronquist, M. Ownbey and J. W. Thompson. 1959. Vascular plants of the Pacific Northwest, Part 4. Ericaceae through Campanulaceae. University of Washington Press, Seattle and London. 510 pp.
    • 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?
    • Fernald, M. L. 1950. Gray's manual of botany. Eighth edition. A handbook of the flowering plants and ferns of the central and northeastern United States and Adjacent Canada. American Book Co., New York.
    • Gleason, H. A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, NY. 910 pp.
    • Gleason, H.A. 1952. New Britton & Brown. Illustrated Flora. Lancaster Press Inc. Lancaster, Pa. B52GLE01PAUS
    • Heidel, B.L., S.V. Cooper and C. Jean. 2000. Plant species of special concern and plant associations of Sheridan County, Montana. Report to U.S. Fish and Wildlife Service. Montana Natural Heritage Program, Helena, Montana. 96 p.
    • Linnaeus, C. 1753. Species Plantarum. A fascimile of the first edition printed by Adlard & Son, Bartholomew Press, Dorking, Great Britain. 2 vol.
    • McVaugh, R. 1936. Studies in the Taxonomy and Distribution of the Eastern North American Species of Lobelia. Rhodora 38:241-263, 276-298, 305-329, 346-362. A36MCV01PAUS.
    • Weishaupt, C.G. 1971. Vascular Plants of Ohio, Third Ed. Kendall/Hunt Publishing Co. Dubuque, Iowa. B71WEI01PAUS
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Citation for data on this website:
Kalm's Lobelia — Lobelia kalmii.  Montana Field Guide.  .  Retrieved on , from