Delaware Wildflowers • Scientific names
Asteraceae — Aster family
A large plant, over 4' (1.2m) tall. References say this is an annual that blooms July - October. This one was blooming in May after a very mild winter; I wonder if it was in its second year.
White Clay Creek State Park -- Possum Hill
A more typical plant, for me, growing in a pavement crack.
David G. Smith