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Green-headed Coneflower, Cutleaf Coneflower - Rudbeckia laciniata


Family: Asteraceae Aster family Genus Common Name: Coneflower Native Status: Native
Rudbeckia laciniata - Green-headed Coneflower, Cutleaf Coneflower. Cutleaf Coneflower is widely distributed in the United States. Found in 45 states, it is missing only in Alaska, Hawaii, Oregon, Nevada, and California. It is listed as Threatened in Rhode Island, but can be quite commonly found in many of the other states.

Blooms in mid to late summer.

Found in:
AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY

Journal Articles Referencing Coneflower

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Distribution of Rudbeckia laciniata in the United States and Canada:
USDA Plants Distribution Map temporarily unavailable.
Blue=Native; Grey=Introduced

Map from USDA Plants Database:
USDA, NRCS. 2009. The PLANTS Database (http://plants.usda.gov, 31 Jul 2014). National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

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Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C. Williamson
Nikon D60
Tamron SP 90MM f/2.8 AF Macro
Cutleaf Coneflower will have 6 to 17 yellow ray flowers surrounding a yellowish-green cone- or thimble-shaped disk. The rays usually droop to an extent, becoming more pronounced as the blossom matures.
Rudbeckia laciniata

Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C Williamson
Nikon D60
The yellow ray flowers of Rudbeckia laciniata appear as curved yellow spikes surrounding the green central cone before they open.
Click on the photo for a larger image
Rudbeckia laciniata

Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C Williamson
Nikon D60
Rudbeckia laciniata can be a tall plant, up to 9 feet, and will usually have many blossoms on a number of long stalks.
Click on the photo for a larger image
Rudbeckia laciniata

Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C Williamson
Nikon D60
The species epithet laciniata comes from the torn appearance of the deeply lobed and coarsely serrated lower leaves.
Click on the photo for a larger image
Rudbeckia laciniata

Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C Williamson
Nikon D60
Leaves are reduced and less likely to be lobed or with fewer lobes at mid-height. Note that these are typically still serrated.
Click on the photo for a larger image
Rudbeckia laciniata

Site: Walker County, GA Date: 2010-August-21Photographer: Gerald C Williamson
Nikon D60
Upper leaves are usualy entire; neither lobed nor serrated.
Click on the photo for a larger image
Rudbeckia laciniata

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2014
Photographs Copyrighted by the named photographer