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Eryngium aquaticum var. ravenelii (A. Gray) Mathias & Constance
SR-P; S1, G4T2T4Q.
Jul–Sep . Not seen in Shaken Creek Preserve by the senior author. Specimens seen in the vicinity: Sandy Run: LeBlond 5425 (NCU!), Taggart SARU 411 (WNC!), Wilbur 57680 (DUKE!; as Eryngium aquaticum ). [= RAB, Weakley]