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PLANTS Profile


Centaurea nigrescens Willd.
Tyrol knapweed

Data Source

Last revised by:
USDA NRCS National Plant Data Team
Curated and maintained by:
USDA NRCS National Plant Data Center
 

Data Documentation

Documentation State Type
1972. Rhodora DC, IN, NE Literature
2000. CalFlora: Information on California plants for education, research and conservation (http://www.calflora.org/). The CalFlora Database, Berkeley CA Literature
2001. Western North American Naturalist WY Literature
Abrams, L. 1960. An illustrated flora of the Pacific States. Stanford University Press, Stanford OR, WA Literature
Assorted authors. State noxious weed lists for 46 states. State agriculture or natural resource departments Literature
Atkinson, S., and F. Sharpe. 1985. Wild plants of the San Juan Islands. The Mountaineers, Seattle WA Literature
Brouillet, L., F. Coursol, and M. Favreau. 2006. VASCAN, the Database of Vascular Plants of Canada. Herbier Marie-Victorin, Institut de recherche en biologie végétale, Université de Montréal BC, NS, ON, QC Literature
Brown, M.L., and R.G. Brown. 1984. Herbaceous plants of Maryland. Port City Press, Inc., Baltimore MD Literature
Clemants, Steven. Personal communication NY Literature
Cullina, M.D., B. Connolly, B. Sorrie, and P. Somers. 2011. The vascular plants of Massachusetts: A county checklist, first revision. Massachusetts Natural Heritage & Endangered Species Program, Massachusetts Division of Fisheries and Wildlife, Westborough MA Literature
Deam, C.C. 1940. Flora of Indiana. Wm.B. Burford Printing Co., Indianapolis IN Literature
Dowhan, J.J. 1979. Preliminary checklist of the vascular flora of Connecticut (growing without cultivation). State Geological and Natural History Survey of Connecticut, Natural Resources Center, Department of Environmental Protection. Hartford CT Literature
George, G.G. 1992. A synonymized checklist of the plants found growing in Rhode Island. Rhode Island Wild Plant Society RI Literature
Glenn, S.D. (ed.). 2013. New York Metropolitan Flora database. New York Metropolitan Flora Project, Brooklyn Botanic Garden, New York CT, NJ, NY Literature
Harvill, A.M., C.E. Stevens, and D.M.E. Ware. 1981. Atlas of the Virginia flora, Part II. Dicotyledons. Virginia Botanical Associates, Farmville VA Literature
Hickman, J.C. (ed.). 1993. The Jepson manual. University of California Press, Berkeley CA Literature
Hough, M.Y. 1978. New Jersey Wild Plants. Harmony Press, Harmony NJ Literature
INVADERS database (http://invader.dbs.umt.edu/) ID, MT, OR, WA Literature
Idaho Department of Agriculture. Noxious weed rules (http://www.agri.state.id.us/Categories/PlantsInsects/NoxiousWeeds/watchlistsci.php, 24 May 2006). Idaho Department of Agriculture, Idaho Literature
Lackschewitz, K. 1991. Vascular plants of west-central Montana: Identification guide book. USDA Forest Service, Intermountain Research Station, Ogden MT Literature
Magee, D. Flora of New England. Unpublished and undated CT, MA, ME, NH, NY, VT Literature
Meyer, J. 1990. Chrysler Herbarium Checklist. Manuscript NJ Literature
Mitchell, R.S. (ed.). 1986. A checklist of New York State plants. Contributions of a Flora of New York State, Checklist III. New York State Bulletin No. 458. New York State Museum, Albany NY Literature
Mohlenbrock, R.H. 1986. Guide to the vascular flora of Illinois, rev. ed. Southern Illinois University Press, Carbondale and Edwardsville IL Literature
New York Flora Association. 1990. Preliminary vouchered atlas of New York State flora, ed. 1. New York State Museum Institute, Albany NY Literature
Oregon Administrative Rules. Quarantine; noxious weeds, Chapter 603-52-1200 (http://www.oregon.gov/ODA/PLANT/docs/pdf/603_052_1200.pdf, 24 May 2006). State of Oregon, Oregon Literature
Oregon Department of Agriculture. Noxious weed policy and classification system (http://www.oregon.gov/ODA/PLANT/WEEDS/lists.shtml#Noxious_weed_policy___list, 24 May 2006). Oregon Department of Agriculture, Oregon Literature
Plant Industry Division. Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act (http://www.ag.state.co.us/CSD/Weeds/statutes/weedrules.pdf, 23 January 2006). Colorado Department of Agriculture, Colorado Literature
Poindexter, D.B., A.S. Weakley,and M.W. Denslow. 2011. New exotic additions and other noteworthy records for the flora of North Carolina. Phytoneuron 2011-42: 1-14 NC Literature
Reed, R. 1987. Wisconsin vascular plants. Unpublished WI Literature
Rhoads, A.F., and W.M. Klein, Jr. 1993. The vascular flora of Pennsylvania. Annotated checklist and atlas. American Philosophical Society, Philadelphia PA Literature
Richards, C.D., F. Hyland, and L.M. Eastman. 1983. Revised check-list of the vascular plants of Maine. Bulletin of the Josselyn Botanical Society, No. 11 ME Literature
Schaffner, J.H. 1932. Revised catalog of Ohio vascular plants. Ohio Biological Survey Bulletin 25. Ohio State University, Columbus OH Literature
Sorrie, B.A. 1992. County checklist of Massachusetts plants. Unpublished MA Literature
Strausbaugh, P.D., and E.L. Core. 1977. Flora of West Virginia, 2nd ed., 4 vols. West Virginia Bulletin, Morgantown WV Literature
Sundberg, Scott. Personal communication OR Literature
Voss, E.G. 1985. Michigan flora. Cranbrook Institute of Science, Bloomfield Hills MI Literature
WS. Specimen at Washington State University, Pullman, Washington, (http://www.wsu.edu/~wsherb/). WA Specimen
WTU. Specimen at University of Washington, Seattle, Washington, (http://www.washington.edu/burkemuseum/collections/herbarium/index.php). WA Specimen
Washington Administrative Code. Noxious weed control, Chapter 16-752 (http://apps.leg.wa.gov/wac/default.aspx?cite=16-752, 24 May 2006). State of Washington, Washington Literature
Washington Administrative Code. State noxious weed list and schedule of monetary penalties, Chapter 16-750 (http://apps.leg.wa.gov/WAC/default.aspx?cite=16-750, 24 May 2006). State of Washington, Washington Literature
Weber, W.R., and W.T. Corcoran. 1993. Atlas of Missouri vascular plants. Unpublished. Southwest Missouri State University and the Missouri Native Plant Society MO Literature
West Virginia county level data WV Literature
Wherry, E.T., J.M. Fogg, and H.A. Wahl. 1979. Atlas of the flora of Pennsylvania. Morris Arboretum, Philadelphia PA Literature
Whitson, T.D. (ed.) et al. Weeds of the West. Western Society of Weed Science in cooperation with Cooperative Extension Services, University of Wyoming, Laramie, Wyoming Literature
Wisconsin vascular plants (http://www.botany.wisc.edu/herbarium). Wisconsin State Herbarium: University of Wisconsin - Madison WI Literature
Yatskievych, G., and J. Turner. 1990. Catalogue of the flora of Missouri. Monographs in Systematic Botany from the Missouri Botanical Garden 37. Missouri Botanical Garden, St. Louis MO Literature
 
 
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