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.
Commelina virginica. Spiderwort Family. June - Sept.
A plant with smooth, branched stems 18 - 36 inches high, found in moist, shady places. New York to Florida, west to Michigan, Kansas and Texas.
Violet-blue, about 1 inch broad, of 3 divisions, one of which is small and inconspicuous.
Lance-shaped, sheathing. A small leaf more or less encloses flower cluster. C. hirtella is similar to the preceding, but may be distinguished by its leaves, which are brown-bearded where they sheath the flower stem.
 
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