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Acer negundo Linnaeus var. negundo . Section: Negundo. Common name: Eastern Box Elder, Ash-leaved Maple, River Maple, Arce, Fresno de Guajuco. Phenology: Mar-Apr; May-Oct. Habitat: Riverbanks, swamps, bottomlands, also upslope on calcareous substrates. Distribution: The species ranges nearly across North America, including well into the arid west along rivers. Var. negundo occurs from NB west to MB, south to c. peninsular FL and TX.

ID notes: Acer negundo often grows on the banks of rivers, leaning out over the water at a 45° angle. The leaves can resemble poison ivy (Toxicodendron radicans), which is easily distinguished by having alternate leaves. The coarse toothing (approaching lobing) distinguishes it readily from any of our ashes (Fraxinus).

Origin/Endemic status: Native

Synonymy : = C, Can, FNA13, K4, Mo2, NcTx, NY, Tx, Va; < Acer negundo L. — Fl4, GW2, Mi, Pa, RAB, Tat, Tn, W, WH3; > Acer negundo ssp. negundo — POWO; > Acer negundo L. var. negundo — Ar, F, G, GrPl, Il, NE, NS, Murray (1970); > Acer negundo L. var. violaceum Booth ex G.Kirchn. — F, G, GrPl, Il, NE, NS, POWO, Murray (1970); < Negundo negundo (L.) H.Karst. — S; < Rulac negundo (L.) Hitchc. — S13. Basionym: Acer negundo L. 1753

Links to other floras: = Acer negundo var. negundo - FNA13

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)
  • Great Plains: FAC (taxonomic split from wetland indicator species)
  • Midwest: FAC (taxonomic split from wetland indicator species)
  • Northcentral & Northeast: FAC (taxonomic split from wetland indicator species)

Heliophily : 4

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image of plant© Keith Bradley | Original Image ⭷
image of plant© Brian Finzel, some rights reserved (CC BY-SA), uploaded by Brian Finzel source CC-BY-SA | Original Image ⭷
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image of plant© Chase Mathey, some rights reserved (CC BY-NC), uploaded by Chase Mathey source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plantno rights reserved, uploaded by Alan Weakley source CC0 | Original Image ⭷
image of plant© Brian Finzel, some rights reserved (CC BY-SA), uploaded by Brian Finzel source CC-BY-SA | Original Image ⭷
image of plant© Keith Bradley | Original Image ⭷
image of plant© Aidan Campos source
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Jay Brasher, some rights reserved (CC BY), uploaded by Jay Brasher source CC-BY | Original Image ⭷
image of plant© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Aidan Campos source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Brandon Corder, some rights reserved (CC BY), uploaded by Brandon Corder source CC-BY | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image of plant© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plantno rights reserved, uploaded by Alan Weakley source CC0 | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Eric M Powell, some rights reserved (CC BY-NC), uploaded by Eric M Powell source CC-BY-NC, permission granted to NCBG | Original Image ⭷

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