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.
Hairy, or True, or Twin Flowered Solomon's Seal.
Polygonatum biflorum. Lily Family. Apr.- June.
Found in rich woods. A plant 1 - 3 feet high. New England to Florida, west to Michigan, Minnesota, Kansas and Texas.
Greenish white, cylindrical, usually borne in pairs from the leaf angles. Berries blue-black.
Finely hairy beneath, set alternately on stem.
Rootstalk jointed, marked with scars of previous years' growths.

Solomon's Seal.
P. commutatum. Found in meadows and along river-banks. A plant 2 - 7 feet high, resembles preceding, but leaves smooth throughout, partly clasping and flowers are in clusters of 2 - 8.
 
Continue to: