Top native mountain ashes
5 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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American Mountain Ash
Sorbus americana
caterpillars
69
hosts
3
food
24
flowers
21
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Showy Mountain-ash
Sorbus decora
caterpillars
61
hosts
2
food
9
flowers
4
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Greene's Mountain Ash
Sorbus scopulina
caterpillars
58
hosts
3
food
6
flowers
3
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Sitka Mountain-Ash
Sorbus sitchensis
caterpillars
48
hosts
2
food
5
flowers
14
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California Mountain Ash
Sorbus californica
caterpillars
27
hosts
1
food
5
flowers
2