Alnus maritima (Marshall) Muhlenberg ex Nuttall ssp. oklahomensis J.A. Schrader & W.R. Graves. Oklahoma Alder. Dist: Endemic to Johnston and Pontotoc counties, sc. OK.
Origin/Endemic status: Endemic
Synonymy: = K3, K4, Schrader & Graves (2002); < Alnus maritima (Marshall) Muhl. ex Nutt. – FNA3, K1
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© Paul Marcum 
© Paul Marcum