Family: Asteraceae
[Silphium simpsonii Greene]
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Plants 25-110 cm. Leaves: basal persistent; cauline opposite or alternate; faces hirsute, hispid, or scabrous. Paleae puberulent and stipitate-glandular. Ray florets 10-15(-20). Disc florets 85-110.
Flowering summer. Roadsides, meadows, open fields; 0-200 m; Ala., Fla., Ga., Miss., S.C.
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