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1 Plants 3-8 dm tall; larger leaves on a plant generally 3-8 cm long; heads 1 (-3) per plant; rays 6-10 (-13) per head; rays 1-2 (-2.4) cm long; [of the Coastal Plain]
..2 Leaves smooth on both sides (or sometimes sparsely pubescent below and slightly scabrous above); leaves (4.0-) 4.5-6.0 (-12) cm wide; stem glabrous and glaucous below, slightly pubescent above, the hairs generally all slender and ascending
..2 Leaves moderately to densely scabrous on both sides; leaves 2.0-3.5 (-5.0) cm wide; stem also scabrous with short, broad-based hairs