This section is from the book "Who's Who Among The Wild Flowers", by W. I. Beecroft. Also available from Amazon: A Field Guide to Edible Wild Plants.
Cohosh: Herb-Christopher.
Actaea rubra.
Crowfoot Family. Apr. - June.
Found in rich woods, an erect, bushy plant 1 - 2 feet high. Nova Scotia to Georgia and far west. Common northward.
White, small, in short, thick, terminal cluster. Berries red, poisonous.
Compound, irregularly toothed and lobed.

Red Baneberry.
Actaea alba.
Closely resembles the preceding except that the poisonous berries are white with a black eye. Common. Nova Scotia to Georgia and far west.
 
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