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Rocky Mountain dandelion - Taraxacum ceratophorum
Other Names:
Horned Dandelion,
Taraxacum eriophorum, Taraxacum officinale ssp. ceratophorum
Native Species
Global Rank:
G5T5
State Rank:
S4
C-value:
6
Agency Status
USFWS:
USFS:
BLM:
External Links
General Description
Leaves 2–15 cm long, margins shallowly to deeply lobed. Peduncles prostrate to erect, 2–10 cm. Involucre 10–16 mm high; inner phyllaries often with swollen, lobed, scarious tips; outer phyllaries erect to ascending. Ray ligules 4–10 mm long. Achenes 3–4 mm long, olive-green; beaks 6–10 mm long (
Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Species Range
Montana Range
Range Descriptions
Native
Range Comments
Circumboreal south to CA, NV and NM (Lesica et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 33
(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
Moist, often sparsely vegetated soil of meadows, turf; spruce forest, sagebrush steppe; montane to alpine, more common higher (
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 auricomus,
Bombus bifarius,
Bombus centralis,
Bombus fervidus,
Bombus flavifrons,
Bombus frigidus,
Bombus huntii,
Bombus melanopygus,
Bombus mixtus,
Bombus nevadensis,
Bombus rufocinctus,
Bombus sylvicola,
Bombus ternarius,
Bombus terricola,
Bombus occidentalis,
Bombus pensylvanicus,
Bombus bimaculatus,
Bombus griseocollis,
Bombus impatiens,
Bombus insularis,
Bombus suckleyi,
Bombus bohemicus, and
Bombus flavidus (Macior 1968, Macior 1974, Thorp et al. 1983, Colla and Dumesh 2010, Wilson et al. 2010, Colla et al. 2011, Miller-Struttmann and Galen 2014, Williams et al. 2014).
Stewardship Responsibility
References
- Literature Cited AboveLegend:
View Online Publication
Colla, S., L. Richardson, and P. Williams. 2011. Bumble bees of the eastern United States. Washington, DC: USDA Forest Service, Pollinator Partnership. 103 p.- 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.
- Macior, L.M. 1968. Bombus (Hymenoptera, Apidae) queen foraging in relation to vernal pollination in Wisconsin. Ecology 49:20-25.
- Macior, L.M. 1974. Pollination ecology of the Front Range of the Colorado Rocky Mountains. Melanderia 15: 1-59.
- Miller-Struttmann, N.E. and C. Galen. 2014. High-altitude multi-taskers: bumble bee food plant use broadens along an altitudinal productivity gradient. Oecologia 176:1033-1045.
- Thorp, R.W., D.S. Horning, and L.L. Dunning. 1983. Bumble bees and cuckoo bumble bees of California (Hymenoptera: Apidae). Bulletin of the California Insect Survey 23:1-79.
- Williams, P., R. Thorp, L. Richardson, and S. Colla. 2014. Bumble Bees of North America. Princeton, NJ: Princeton University Press. 208 p.
- Wilson, J.S., L.E. Wilson, L.D. Loftis, and T. Griswold. 2010. The montane bee fauna of north central Washington, USA, with floral associations. Western North American Naturalist 70(2): 198-207.
- Additional ReferencesLegend: View Online Publication
Do you know of a citation we're missing?- Aho, Ken Andrew. 2006. Alpine and Cliff Ecosystems in the North-Central Rocky Mountains. Ph.D. Dissertation. Bozeman, Montana: Montana State University. 343 p.
- Johnson, T. W. 1982. An analysis of pack and saddle stock grazing areas in the Bob Marshall Wilderness. M.Sc.Thesis. Bozeman, MT: Montana State University. 105 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.
- South, P.R. 1957. Food habits and range use of the mule deer in the Scudder Creek area, Beaverhead County, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 34 p.
- Williams, K.L. 2012. Classification of the grasslands, shrublands, woodlands, forests and alpine vegetation associations of the Custer National Forest portion of the Beartooth Mountains in southcentral Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 376 p.
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