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.
Swamp Cabbage.
Symplocarpus foetidus. Arum Family. Mch. - Apr.
An unmistakably ill-scented plant, found in low, wet ground. Nova Scotia to North Carolina, westward to Ontario, Minnesota and Iowa.
Minute, scattered over a thick, fleshy club within its flower envelope, which is variously streaked with greenish yellow and madder purple, and appears just above the ground.
From the base, large, often 1 foot across, strongly veined.

Skunk Cabbage.
 
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