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.
Bluebells: Tree or Smooth Lungwort. Mertensia virginica.
Borage Family. Apr. - May.
A plant 1 - 2 feet high, found in low meadows, along streams. New York and Ontario to Nebraska, and southward.
Pinkish in the bud, afterward violet, trumpet-shaped, 5-lobed, about 1 inch long, borne in loose clusters which are rolled up at the tip and straighten as the flowers expand.
Veiny, toothless, upper leaves seated on stem, lower ones long-stemmed.
 
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