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Alnus maritima (Marshall) Muhlenberg ex Nuttall ssp. maritima . Seaside Alder, Delmarva Alder. Phen: Jul; mid Aug-early Oct. Hab: Ecotones between fresh tidal marshes and tidal swamps, open-canopy Atlantic white cedar swamps, streambanks, ponds, shores. Dist: Endemic to five counties in the Delmarva Peninsula of MD and DE.

Origin/Endemic status: Endemic

Taxonomy Comments: See ssp. georgiensis for additional discussion of the taxonomy of A. maritima.

Synonymy: = K3, K4, Schrader & Graves (2002); < Alnus maritima (Marshall) Muhl. ex Nutt. – C, F, FNA3, G, K1; < Alnus maritima var. maritima – Tat

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (name change)
  • Great Plains: OBL (taxonomic split from wetland indicator species)

Heliophily ?: 8

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image of plant© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷ Warning: was NOT research grade.
image of plant© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Jonathan Irons, some rights reserved (CC BY-NC), uploaded by Jonathan Irons source CC-BY-NC | Original Image ⭷

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