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1 Largest pinnae 4-7 mm long; scales of the upper surface of the leaf blade circular to elliptic, peltate
..2 Scales of the upper leaf surface dense and usually persistent; largest pinnae asymmetrically lobed or entire; [rare eastern disjunct known from AL]
..2 Scales of the upper leaf surface sparse and usually deciduous; largest pinnae usually symmetrically lobed; [TX westwards and southwestwards, also rare eastern disjunct known from GA and SC]