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  1. Life
  2. Plants
  3. Vascular Plants
  4. Dicots
  5. Roses, Elms, Figs, and Allies
  6. Rose Family
  7. Maleae
  8. Mountain Ashes

genus

Mountain Ashes

Sorbus

Traits
Includes
5 native 1 introduced 1 present
Where
In the US
Source
iNaturalist

Field notes

Children

  • European Mountain Ash introduced
  • American Mountain Ash native
  • Greene's Mountain Ash native
  • Sitka Mountain-Ash native
  • Showy Mountain-ash native
  • Siberian Mountain Ash
  • California Mountain Ash native
  • Siberian Mountain Ash
  • Sorbus randaiensis present
  • Japanese Rowan
  • Tian Shan Mountain Ash
  • Sorbus koehneana
  • Ulleung Island Rowan

Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided

Key traits

Layer
Trees
Plant type
Perennial Shrub Tree

From USDA PLANTS.

Top native mountain ashes All

Native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.

  • American Mountain Ash Sorbus americana caterpillars 69 hosts 3 food 24 flowers 21
  • Showy Mountain-ash Sorbus decora caterpillars 61 hosts 2 food 9 flowers 4
  • Greene's Mountain Ash Sorbus scopulina caterpillars 58 hosts 3 food 6 flowers 3
  • Sitka Mountain-Ash Sorbus sitchensis caterpillars 48 hosts 2 food 5 flowers 14
  • California Mountain Ash Sorbus californica caterpillars 27 hosts 1 food 5 flowers 2

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