Green-headed Coneflower, Cutleaf Coneflower, Golden Glow - Rudbeckia laciniata
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Rudbeckia laciniata - Green-headed Coneflower, Cutleaf Coneflower, Golden Glow. 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:
Map courtesy of The Biota of North America Program.
Map color key
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| | Site: Walker County, GA Date: 2010-August-21 | Photographer: 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. | | 
| | Site: Walker County, GA Date: 2010-August-21 | Photographer: 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
| | Site: Walker County, GA Date: 2010-August-21 | Photographer: 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
| | Site: Walker County, GA Date: 2010-August-21 | Photographer: 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
| | Site: Walker County, GA Date: 2010-August-21 | Photographer: 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
| | Site: Walker County, GA Date: 2010-August-21 | Photographer: Gerald C Williamson
Nikon D60 | | Upper leaves are usualy entire; neither lobed nor serrated. | | Click on the photo for a larger image
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References used for identification and information:
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