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.
Marsh Calla.
Calla palustris. Arum Family. May - June.
A plant 5 - 10 inches high. Found in cool bogs and swamps. Nova Scotia and southward to Virginia, westward to Minnesota, Iowa and Michigan.
Tiny on short, thick club; outer envelope white above, greenish beneath, opening nearly flat. Berries red, in clusters.
Rich green, somewhat heart-shaped, from creeping rootstock.

Water Arum.
 
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