Chinquapin oak

Silhouette - chinquapin oak
  • Latin name: Quercus muehlenbergii Engelm.
  • French name: Chêne jaune
  • Synonym(s): Yellow chestnut oak , chinquapin oak
  • Taxonomic Serial Number: 504714
Description

Leaves

  • Leaf - chinquapin oak

Form

  • Narrow, tapered to both ends
  • Tip narrow
  • Principal veins 10–15 per side
  • Straight, parallel
  • Each ending in a large pointed or slightly rounded tooth
  • Lower surface downy with stellate hairs having rays parallel
  • to leaf surface

Length

  • 10–18 cm

Colour

  • Upper surface glossy green
  • Lower surface pale greyish-green

Margin

  • Coarsely toothed

Petiole

  • Slender
  • 1–3 cm long

Buds

  • Lateral bud and leaf scar - chinquapin oak

Form

  • Terminal bud ovoid
  • Sharp-pointed
  • Mostly hairless

Length

  • 4–6 mm

Colour

  • Light reddish-brown

Twigs

  • Winter twig - chinquapin oak

Form

  • Slender, hairless

Colour

  • Green
  • Becoming greyish-brown to orange-brown with age

Flowers

Form

  • Pollen flowers small
  • In many-flowered drooping catkins
  • Seed flowers small
  • Solitary or in few-flowered clusters (spikes)

Structure

  • Monoecious

Floral timing

  • With the leaves

Fruits

  • Acorn - chinquapin oak

Form

  • Acorns short-stalked
  • Cup deep, bowl-shaped, enclosing about one-third to one-half of the acorn
  • Covered with small, hairy scales only slightly swollen
  • May form an inconspicuous marginal fringe

Length

  • Acorns 12–25 mm

Structure

  • 1-seeded nut

Bark

Form

  • Thin narrow scales

Colour

  • Pale grey to whitish

Size

Height

  • To 30 m
  • 15 m when open-grown

Diameter

  • To 60 cm
  • Occasionally larger

Tree form

  • Silhouette - chinquapin oak

Forest-grown

Trunk

  • Usually straight
  • Distinct well into the crown
  • Strongly tapered with a swollen base

Crown

  • Narrow, rounded
  • Made up of many short branches

Habitat

Site

  • Dry rocky slopes and ridges
  • Limestone soils and sand dunes

Range

Uncommon in Canada
Southwestern Ontario, and southeastern Ontario near the Thousand Islands

Photos
  • Chinquapin oak
Distribution map
Distribution map - chinquapin oak
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