Alnus maritima (Marshall) Muhlenberg ex Nuttall ssp. maritima . Common name: Seaside Alder, Delmarva Alder. Phenology: Jul; mid Aug-early Oct. Habitat: Ecotones between fresh tidal marshes and tidal swamps, open-canopy Atlantic white cedar swamps, streambanks, ponds, shores. Distribution: 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 ⓘ: = K4, NS, POWO, Schrader & Graves (2002); = Betula-alnus maritima Marshall; < Alnus maritima (Marshall) Muhl. ex Nutt. — C, F, FNA3, G; < Alnus maritima (Marshall) Muhl. ex Nutt. var. maritima — Tat. Basionym: Betula-alnus maritima Marshall 1785
Links to other floras: < Alnus maritima - FNA3
Show parent genus | Show parent in key(s)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: OBL (name change)
- Great Plains: OBL (taxonomic split from wetland indicator species)
Heliophily ⓘ: 8
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.
© 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.
© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Jared Gorrell, some rights reserved (CC BY-NC), uploaded by Jared Gorrell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Jonathan Irons, some rights reserved (CC BY-NC), uploaded by Jonathan Irons source CC-BY-NC | Original Image ⭷Feedback
See something wrong or missing on about Alnus maritima ssp. maritima? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months. If a species is not keyed, that's because keying is ongoing. Please don't send us feedback about unkeyed species.
Horticultural Information
No horticultural data found for this taxon.