Fraxinus americana
White Ash
Oleaceae

Located next to Manchester Hall near Mirror Lake.

  • leaves opposite, pinnate compound, with 5 to 9 leaflets
  • leaflets ovate-lanceolate, acuminate, with smooth margins (unlike somewhat serrated margins on F. pennsylvanica)
  • leaves dark green; turning yellow-purple in fall (green ash is yellow)
  • terminal bud large, flattened, rounded, with 4 to 6 scales, dark brown (larger buds than green ash)
  • lateral buds smaller, set in the leaf scar
  • stems thick, coarse, with raised leaf scars that are rounded and brown
  • leaf scars often have a notch, unlike green ash
  • stems smooth unlike somewhat fuzzy young twigs of F. pennsylvanica
  • stems appear with characteristic swellings ("pretzel with salt") when viewed from afar
  • flowers inconspicuous in early spring
  • fruit is an elongated samara, in clusters, like a boat paddle, falling early
  • bark dark gray, with characteristic deep furrows and narrow ridges
  • habit is a medium to large single-stem shade tree
  • plant develops an open crown and coarse texture with thick branches


View Fraxinus Americana page in the UConn Plant Database


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