This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
Color of large rays, golden yellow. Heads in corymbose panicles. Leaves, the lower petioled, deeply, pin-nately divided; upper, sessile, 3-lobed or divided. Outer and inner scales of the involucre about the same length, much shorter than the rays. Stem, tall, 2 to 5 feet high, smooth, branched. August to October.
Swamps and wet meadows, sometimes in damp, open woods, Massachusetts to Georgia. A showy species, not very common with us.
 
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