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Montana Field Guide

Montana Field Guides

Kelsey's Phlox - Phlox kelseyi

Native Species

Global Rank: G4
State Rank: S4

Agency Status
MNPS Threat Rank:
C-value: 5

External Links

General Description
Taprooted, forming loose to dense mats. Stems prostrate to ascending, 3–12 cm, glabrous or sparsely hirsute and glandular. Leaves firm to succulent, linear, 8–25 mm long, glabrous to glandular-puberulent, often ciliate. Flowers solitary; calyx glabrate to glandular-villous, 6–12 mm long with flat intercostal membranes; corolla white to blue, the tube 9–16 mm long, lobes 5–9 mm long; style 4–7 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are varieties kelseyi and missoulensis (Wherry) Cronquist.

Species Range

Range Comments
ID, MT south to NV and CO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 35

(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)

  • Additional ReferencesLegend:   View Online Publication
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    • Campbell, L.M. 1992. Biosystematics of Phlox kelseyi (Polemoniaceae). M.S. thesis. University of Montana. 78 pp.
    • Campbell, Lisa M. 1985. Biosystematics of Phlox kelseyi (Polemoniaceae). University of Montana, Missoula, MT. 125 pp.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
    • Schassberger, L.A. and P.L. Achuff. 1991. Status review of Phlox kelseyi var. Missoulensis. Prepared for the USDA Forest Service, Region 1, Lewis and Clark National Forest, Montana. Montana Natural Heritage Program, Helena, MT 37 pp.
    • Steele, R. W. 1971. Red alder habitats in Clearwater County, Idaho. Unpublished thesis, University of Idaho, Moscow. 88 pp.
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Citation for data on this website:
Kelsey's Phlox — Phlox kelseyi.  Montana Field Guide.  .  Retrieved on , from