Top native false-buckthorns
5 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Cascara
Frangula purshiana
caterpillars
17
food
8
flowers
18
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Coffeeberry
Frangula californica
caterpillars
11
hosts
2
food
37
flowers
55
-
Sierra Coffeeberry
Frangula rubra
caterpillars
3
food
1
flowers
1
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Carolina Buckthorn
Frangula caroliniana
caterpillars
2
food
1
flowers
2
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Pearleaf Buckthorn
Frangula obovata
caterpillars
1
food
1
flowers
1