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oak

Plant

  • Large tree
  • Deciduous
  • Numerous species

Twig

  • Alternate leaf arrangement

Leaf

  • 2½-6" long
  • Lobed and / or toothed
  • Vary by species

Flower

  • Green or yellow-brown catkins
  • Not showy

Fruit

  • ¾-1½" long nut
  • Round to ovoid
  • Tan or brown, with distinct cap
  • Vary by species