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*Alnus glutinosa (Linnaeus) Gaertner. Common name: Black Alder, European Alder. Phenology: Mar-May. Habitat: Disturbed areas, suburban woodlands, wetland restoration areas (where sometimes planted and spreading). Distribution: Native of Europe. Sometimes cultivated, especially northward, and naturalizing in wetlands southwards at least to e. TN and w. NC. Also been reported for Morgan County, TN (Chester, Wofford, & Kral 1997). Reported as well-established in Washington County VA (Virginia Botanical Associates 2018).

Origin/Endemic status: Europe

Taxonomy Comments: POWO (2024) recognizes four subspecies; the subspecies introduced in North America is ssp. glutinosa.

Synonymy ⓘ: = C, Can, F, FNA3, G, Il, K4, Mi, NE, NS, NY, Pa; = Alnus alnus (L.) Britton; = Betula alnus L. var. glutinosa L.; = n/a — Tat; > Alnus glutinosa ssp. glutinosa — POWO. Basionym: Betula alnus L. var. glutinosa L. 1753

Links to other floras: = Alnus glutinosa - FNA3

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACW
  • Eastern Mountains and Piedmont: FACW
  • Great Plains: FACW
  • Midwest: FACW
  • Northcentral & Northeast: FACW

Heliophily ⓘ: 7

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image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷

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Horticultural Information

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