Jack’s hybrid poplar

  • Latin name: Populus xjackii Sarg.
  • French name: Peuplier hybride de Jack
  • Taxonomic Serial Number: 22467
Description

Leaves

  • Leaf - Jack’s hybrid poplar

Form

  • Triangular-ovate, tip short, taper-pointed
  • Base heart-shaped, with 2 or 3 glands

Length

  • 7–10 cm

Colour

  • Upper surface bluish-green
  • Lower surface paler

Margin

  • Preformed leaves with 15–30 teeth per side
  • Neoformed leaves with 25–50 teeth per side

Petiole

  • Slightly flattened
  • 2.5–5 cm long

Buds

  • Lateral bud and leaf scar - Jack’s hybrid poplar

Form

  • Ovoid, resinous

Length

  • 9–13 mm

Colour

  • Reddish

Twigs

Colour

  • Reddish-brown

Flowers

Length

  • Flowering catkins 5–15 cm

Structure

  • Dioecious

Fruits

Form

  • Catkins’ stalk hairy

Length

  • Fruiting catkins up to 20 cm

Bark

Form

  • Furrowed on older trees

Colour

  • Greyish-brown with an orange cast
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