Showy mountain-ash

Silhouette - showy mountain-ash
  • Latin name: Sorbus decora (Sarg.) C.K. Schneid.
  • French name: Sorbier décoratif
  • Synonym(s): Dogberry
  • Taxonomic Serial Number: 25322
Description

Leaves

  • Leaf - showy mountain-ash
  • Leaflet with detail of finely toothed margin - showy mountain-ash

Form

  • 13–17 leaflets
  • Narrowly elliptic
  • Scarcely tapered
  • Blunt-pointed, firm
  • Slightly hairy when young

Length

  • Leaflets 3–8 cm
  • Leaf and central stalk about 20 cm

Colour

  • Upper surface blue-green
  • Lower surface paler

Margin

  • Finely toothed from the tip to the middle or just below

Buds

  • Lateral bud and leaf scar - showy mountain-ash

Form

  • Terminal bud narrowly cone-shaped
  • Sharp-tipped often with a curve
  • Shiny, sticky
  • Outer scales hairless
  • Inner scales hairy

Length

  • 10–14 mm

Colour

  • Dark reddish-brown

Twigs

  • Winter twig - showy mountain-ash

Form

  • Skin that weathers off
  • Hairless

Colour

  • Reddish-brown to greyish

Flowers

Form

  • Petals round
  • Flowers on short, stout, hairy stalks
  • In dense, many-flowered, open clusters (corymbs)

Length

  • Petals 4–5 mm

Structure

  • Synoecious

Floral timing

  • May and June
  • A week or so later than American mountain-ash

Fruits

  • Fruit - showy mountain-ash

Form

  • Shiny
  • In many-fruited, rounded clusters
  • Flesh thick

Width

  • 8–10 mm

Colour

  • Red

Structure

  • Pome

Timing

  • Fruits mature in August and September

Bark

Form

  • Smooth, thin, with age becoming slightly scaly

Colour

  • Light greyish-green to golden-brown

Size

Height

  • To 15 m

Diameter

  • To 25 cm

Tree form

  • Silhouette - showy mountain-ash

Forest-grown

Trunk

  • Straight, branch-free

Crown

  • Short, rounded

Habitat

Site

  • Rocky shores of rivers and lakes
Photos
  • Showy mountain-ash
Distribution map
Distribution map - showy mountain-ash
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