species 747 observations
Island Ceanothus
Ceanothus arboreus
Field notes
Ceanothus arboreus is a species of perennial shrub to small tree in the family Rhamnaceae, commonly known as the feltleaf ceanothus, island ceanothus, and island mountain lilac. It is the largest member of the California lilacs (the Ceanothus genus), and is characterized with glossy, dark green foliage that is adorned by pale blue to white flowers in bloom. It is endemic to the Channel Islands of California and Guadalupe Island in Mexico, only being re-discovered on Guadalupe Island after the elimination of feral goats.
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Caterpillars
Moths and butterflies raised on it
Ceanothus Stem Gall Moth, Dishkeya bifurcata, California Tortoiseshell, Pacuvius Duskywing
40
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Hosted animals
Gall makers, leaf miners and other animals living on or in it
Pacific Flat-Headed Borer, Ceanothus Bud Gall Midge
2
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Plant eaters
Animals that feed on it
Margined Calligrapher, White-bowed Smoothwing, Common Grass Skimmer, Western Yellowjacket
16
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Flower visitors
Pollinators and other flower visitors
Black-tailed Bumble Bee, Oblique Streaktail, Yellow-faced Bumble Bee, Tripartite Sweat Bee
59
Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Key traits
From the Lady Bird Johnson Wildflower Center and USDA PLANTS.