Top native buckthorns
6 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Alderleaf Buckthorn
Rhamnus alnifolia
caterpillars
15
hosts
1
food
4
flowers
8
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Redberry Buckthorn
Rhamnus crocea
caterpillars
14
hosts
1
food
14
flowers
8
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Hollyleaf Redberry
Rhamnus ilicifolia
caterpillars
10
food
10
flowers
8
-
Lanceleaf Buckthorn
Rhamnus lanceolata
caterpillars
6
food
4
flowers
45
-
Hairyleaf Redberry
Rhamnus pilosa
caterpillars
6
food
4
flowers
2
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Island Redberry
Rhamnus pirifolia
caterpillars
6
food
4
flowers
2