Spreading Phlox - Phlox diffusa
Taprooted, loosely mat-forming. Stems prostrate to ascending, 2–10 cm, glabrous to minutely glandular above. Leaves firm, linear, 5–15 mm long, glabrous, ciliate. Flowers solitary; calyx villous, 5–9 mm long with flat intercostal membranes; corolla white to blue, the tube 9–12 mm long, lobes 5–9 mm long; style 4–8 mm long (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX
BC, MT south to CA, NV, ID; known from Missoula and Ravalli counties (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations:
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(Observations spanning multiple months or years are excluded from time charts)
Stony, non-calcareous fellfields, open slopes, rock outcrops, talus, forest openings; upper montane to alpine (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.
- Additional ReferencesLegend: View Online Publication
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- Kitchen, K.A. 2010. The influence of Douglas-fir and Rocky Mountain juniper on Wyoming and mountain big sagebrush cover in southwest Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 87 p.
- 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.