Top native birches
5 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Paper Birch
Betula papyrifera
keystone
caterpillars
395
hosts
18
food
68
flowers
7
shelter
2
-
Gray Birch
Betula populifolia
keystone
caterpillars
290
hosts
15
food
48
flowers
6
-
Swamp Birch
Betula pumila
keystone
caterpillars
289
hosts
15
food
48
flowers
4
-
Water Birch
Betula occidentalis
keystone
caterpillars
171
hosts
10
food
26
flowers
2
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Dwarf Birch
Betula nana
keystone
caterpillars
102
hosts
6
food
39
flowers
1