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.
Dew-plant.
Drosera rotundifolia.
Sundew Family. July - Aug.
Found in bogs and sandy marshes. Labrador to the Gulf of Mexico and westward. From Alaska to California.
Small, white, opening one at a time, on stalk 4 - 10 inches high.
Grow in a rosette, round, borne on long stems, and covered with red hairs.

Round-leaved Sundew.
Drosera longifolia.
Leaves widest at the tip, tapering toward the stems. Leaf stems without hairs.
 
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