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Montana Field Guide

Montana Field Guides

Desert mountain phlox - Phlox austromontana

Status Under Review
Native Species

Global Rank: G5
State Rank: SU

Agency Status


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General Description
Taprooted, forming loose to dense mats. Stems ascending to erect, 4–10 cm, glabrous to pubescent. Leaves firm, linear, 7–15 mm long, glabrate to villous. Flowers solitary; calyx sparsely villous, 6–9 mm long with keeled intercostal membranes; corolla white, the tube 8–12 mm long, lobes 4–8 mm long; style 2–5 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
OR to MT south to CA, AZ, UT, CO and Mexico. One collection from Beaverhead County (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 vagans, Bombus flavifrons, Bombus melanopygus, Bombus pensylvanicus, Bombus bimaculatus, Bombus griseocollis, Bombus impatiens, and Bombus kirbiellus (Shaw and Taylor 1986, 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.
    • Shaw, D.C. and R.J. Taylor.1986. Pollination ecology of an alpine fell-field community in the North Cascades. Northwest Science 60:21-31.
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Citation for data on this website:
Desert mountain phlox — Phlox austromontana.  Montana Field Guide.  .  Retrieved on , from