Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
Tracy's thistle
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Cirsium tracyi
©Al Schneider. Southwest Colorado Wildflowers. United States, CO, NM, AZ, UT, Four Corners vicinity, within 150 miles of the corners. Usage Requirements.
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Images:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
Click on a thumbnail to view an image, or
see all the Cirsium thumbnails at the PLANTS Gallery
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Synonyms:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
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CATR14 |
Carduus tracyi Rydb. |
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CIAC4 |
Cirsium acuatum (Osterh.) Petr. |
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CIFL3 |
Cirsium floccosum (Rydb.) Petr. |
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CITR4 |
Cirsium tracyi (Rydb.) Petr. |
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Distribution:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
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See U.S. county distributions (when available) by clicking on the map or the linked states below:
USA (CO, UT) |
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Related Taxa:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
View
478 genera in Asteraceae,
95 species in Cirsium,
2 varieties
in Cirsium undulatum (Nutt.) Spreng.
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Classification:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
Click on a scientific name below to expand it in the PLANTS
Classification Report.
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Noxious Weed Information:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
The related entities italicized and indented above are listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place
name to get a complete noxious weed list for that location,
or click here for a composite list of all
Federal and State Noxious Weeds.
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U.S. Weed Information:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
Cirsium
thistle
Cirsium undulatum
gray thistle
wavyleaf thistle
The related entities italicized and indented above can be weedy or invasive according to the authoritative sources noted below. This plant
may be known by one or more common names in different
places, and some are listed above. Click on an acronym
to view each weed list, or click here for a
composite list of Weeds of the U.S.
| STATE |
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Assorted authors.
200_.
State noxious weed lists for 46 states.
State agriculture or natural resource departments.
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| NE&GP |
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Stubbendieck, J., G.Y. Friisoe, & M.R. Bolick.
1994.
Weeds of Nebraska and the Great Plains.
Nebraska Department of Agriculture, Bureau of Plant Industry.
Lincoln, Nebraska.
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| SWSS |
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Southern Weed Science Society.
1998.
Weeds of the United States and Canada. CD-ROM.
Southern Weed Science Society.
Champaign, Illinois.
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| WSWS |
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Whitson, T.D. (ed.) et al.
1996.
Weeds of the West.
Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming.
Laramie, Wyoming.
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Wetland Indicator Status:
NOTE: On June 1, 2012, the 2012 National Wetland Plant List superseded the information below (see Federal Register, May 9, 2012, 77(90): 27210-27214[https://federalregister.gov/a/2012-11176]). For updated wetland information about this species, see the latest wetland list.
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
Cirsium undulatum:
| Nat. Ind. |
Reg. 1 |
Reg. 2 |
Reg. 3 |
Reg. 4 |
Reg. 5 |
Reg. 6 |
Reg. 7 |
Reg. 8 |
Reg. 9 |
Reg. 0 |
Reg. A |
Reg. C |
Reg. H |
| FACU,FAC |
NO |
NO |
FAC- |
FAC |
FACU |
FACU |
FAC- |
FACU |
FACU+ |
NI* |
NO |
NO |
NO |
Interpreting Wetland Indicator Status
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More Accounts and Images:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
View taxonomic account from Integrated Taxonomic Information System (ITIS) for ITIS Taxonomic Serial Number 527386.
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Related Web Sites:
Cirsium undulatum (Nutt.) Spreng. var. tracyi (Rydb.) S.L. Welsh
University of New Mexico: Cirsium Web Sites
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