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Woolly Groundsel - Senecio canus
Other Names:
Packera cana
Native Species
Global Rank:
G5
State Rank:
S5
Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:
3
External Links
General Description
Fibrous-rooted from a simple or branched caudex or simple rhizome. Stems erect to ascending, sometimes branched above, 3–40 cm. Herbage tomentose, sometimes becoming glabrate on upper leaf surfaces. Leaves basal and cauline; basal blades linear-oblanceolate to ovate, entire to dentate, 1–8 cm long; cauline blades lanceolate, often with lobes or teeth, becoming sessile. Inflorescence corymbiform of 2 to 20 heads. Heads radiate; involucres 4–12 mm high; phyllaries 13 to 21, sparsely tomentose, sometimes purplish. Rays 8 to 13; ligules 3–12 mm long. Disk corollas 4–7 mm long. Achenes 2–4 mm long, glabrous
(Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Species Range
Montana Range
Year-round
Range Comments
BC to MB south to CA, AZ, NM and KS (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
Observations in Montana Natural Heritage Program Database
Number of Observations: 825
(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
Often stony soil of grasslands, sagebrush steppe, meadows, open forest, fellfields, talus, roadsides at all elevations; plains, valleys to alpine
(Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
References
- Additional ReferencesLegend:
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Bess, J.A. 1997. The leafhopper species assemblages associated with native and replanted grasslands in southwest Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 94 p.- Cope, M.G. 1992. Distribution, habitat selection and survival of transplanted Columbian Sharp-tailed Grouse (Tympanuchus phasianellus columbianus) in the Tobacco Valley, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 60 p.
- Eversman, S.T. 1968. A comparison of plant communities and substrates of avalanche and non-avalanche areas in south central Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 39 pp.
- Fogelsong, M.L. 1974. Effects of fluorides on Peromyscus maniculatus in Glacier National Park. M.Sc. Thesis. Bozeman, Montana: Montana State University. 52 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. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
- Martin, S.A. 1985. Ecology of the Rock Creek bighorn sheep herd, Beartooth Mountains, Montana. M.Sc. Thesis. Bozeman, MT: Montana State University. 152 p.
- Martinka, R.R. 1970. Structural characteristics and ecological relationships of male blue grouse (Dendragapus obscurus (Say)) territories in southwestern Montana. Ph.D Dissertation. Bozeman, MT: Montana State University. 73 p.
- Pallister, G.L. 1974. The seasonal distribution and range use of bighorn sheep in the Beartooth Mountains, with special reference to the West Rosebud and Stillwater herds. M.Sc. Thesis. Bozeman, MT: Montana State University. 67 p.
- Steerey, W. F. 1979. Distribution, range use and population characteristics of Mule Deer associated with the Schafer Creek winter range, Bridger Mountains, Montana. M.Sc. Thesis. Bozeman, Montana: Montana State University. 119 p.
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