Top native ceanothus subg. ceanothus
4 species, native to the US, ranked by caterpillars, then bees and other hosts, food, flowers and shelter.
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Snowbrush Ceanothus
Ceanothus velutinus
caterpillars
49
hosts
2
food
16
flowers
97
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Island Ceanothus
Ceanothus arboreus
caterpillars
40
hosts
2
food
16
flowers
59
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Greenbark Ceanothus
Ceanothus spinosus
caterpillars
39
hosts
2
food
16
flowers
56
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Santa Barbara Ceanothus
Ceanothus impressus
caterpillars
31
hosts
1
food
16
flowers
53