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Silphium perplexum J.R. Allison. Common name: Old Cahaba Rosinweed. Habitat: Dolomitic glades and woodlands. Distribution: Endemic to c. AL (Allison & Stevens 2001).

Origin/Endemic status: Endemic

Synonymy : = FNA21, K4; = Silphium ×perplexum J.R.Allison, pro species

Links to other floras: = Silphium perplexum - FNA21

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Heliophily : 9

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Horticultural Information

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