Blue Cohosh - Caulophyllum thalictroides
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Caulophyllum thalictroides - Blue Cohosh. Possible toxicity, especially to pregnant women.
Found in:
AL, AR, CT, DE, GA, IA, IL, IN, KS, KY, MA, MD, ME, MI, MN, MO, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, VA, VT, WI, WV
Journal Articles Referencing Cohosh
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Distribution of Caulophyllum thalictroides in the United States and Canada:
Map courtesy of The Biota of North America Program.
Map color key
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| | Site: The Pocket at Pigeon Mountain, Walker County, GA Date: 2009-March-26 | Photographer: Gerald C Williamson
Nikon D60
1/10f/16 ISO200
Tamron SP 90MM f/2.8 AF Macro
90mm (135 equiv) | | | | 
| | Site: The Pocket at Pigeon Mountain, Walker County, GA Date: 2009-March-21 | Photographer: Gerald C Williamson
Nikon D60
1/125f/5.6 ISO100
Nikon Nikkor AF-S 55-200mm 4-5.6G ED
200mm (300 equiv) Flash: Yes | | | | Click on the photo for a larger image
| | Site: The Pocket at Pigeon Mountain, Walker County, GA Date: 2009-June-06 | Photographer: Gerald C Williamson | | Blue Cohosh berries. When they ripen they will be the plant's namesake blue. | | Click on the photo for a larger image
| | Site: The Pocket at Pigeon Mountain, Walker County, GA Date: 2009-March-18 | Photographer: Gerald C Williamson
Nikon D60
1/125f5.6 ISO100
Nikon Nikkor AF-S 55-200mm 4-5.6G ED
165mm (247mm equiv) Flash: Yes | | Blue Cohosh clearly does not get its color name from the clusters of star-shaped green flowers. | | Click on the photo for a larger image
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