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Physostegia intermedia (Nuttall) Engelmann & A. Gray. Slender Dragonhead, Slender Obedient-plant. Phen: Apr-Oct. Hab: Swamps, moist forests, ditches. Dist: IL, KY, AR, and LA west to OK and TX. Also mapped as widespread in Coastal Plain of GA (Jones & Coile 1988); presumably an error.

Origin/Endemic status: Native

Synonymy: = Ar, C, F, GW2, K1, K3, K4, Cantino (1982); = Dracocephalum intermedium Nutt.; > Physostegia intermedia (Nutt.) Engelm. & A.Gray – NcTx, Tx; > Physostegia micrantha Lundell – NcTx, Tx

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