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.
Rough Hawkweed.
Hieracium scabrum.
Composite Family. July - Sept.
A plant 1 - 3 feet high, found in dry woods, pastures. Nova Scotia to Georgia, west to Nebraska.
Yellow, in branching, terminal clusters.
Blunt, almost toothless, seated on stem. Whole plant hairy.

Hawkweed.
H. Gronovii.
A similar plant with slender stem, very leafy and hairy below.
 
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