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Aceraceae

Flowers: Perfect or imperfect and then plants monoecious or dioecious, actino-morphic, wind or insect pollinated (latter with nectar disc); carpels 2, syncarpous; ovary superior, winged, 2-locular; 2 axile ovules per locule

Inflorescescences: Various

Fruits: Schizocarp into samaras

Habit: Deciduous trees, some shrubs

Leaves: Opposite, palmately lobed, divided or compound; pinnately compound in box-elder; no stipules

Examples:

  • Acer campestre (hedge maple)
  • A. ginnala (Amur maple)
  • A. griseum (paper bark maple)
  • A. japonicum (full moon maple)
  • A. negundo (box-elder) *
  • A. nigrum (black maple) *
  • A. palmatum (Japanese maple)
  • A. pensylvanicum (striped maple, moosewood) *
  • A. platanoides (Norway maple)
  • A. pseudoplatanus (Sycamore maple)
  • A. rubrum (red maple) *
  • A. saccharinum (silver maple) *
  • A. saccharum (sugar maple)* 40 gallons sap = 1 gallon syrup

native to eastern North America