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Spreading Phlox - Phlox diffusa
Native Species
Global Rank:
G5
State Rank:
S4
C-value:
Agency Status
USFWS:
USFS:
BLM:
External Links
General Description
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).
Range Comments
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: 32
(Click on the following maps and charts to see full sized version)
Map Help and Descriptions
Relative Density
Recency
(Observations spanning multiple months or years are excluded from time charts)
Habitat
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).
Ecology
POLLINATORS 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).
Stewardship Responsibility
References
- 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
Do you know of a citation we're missing?- 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.
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