California Tortoiseshell
Nymphalis californica
Insect
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CA Special Concern
California Species of Special Concern; population fluctuations noted
Plants that support California Tortoiseshell
14 plants
California Lilac (Blue Blossom)
Ceanothus thyrsiflorus
shrub
Larval Host
Bay Area native
Keystone species
Alameda Manzanita
Arctostaphylos pallida
shrub
Foliage
Bay Area native
Keystone species
Arroyo Willow
Salix lasiolepis
shrub
Larval Host
Bay Area native
Keystone species
Brittleleaf Manzanita
Arctostaphylos crustacea subsp. crustacea
shrub
Larval Host
Bay Area native
Keystone species
Deerbrush
Ceanothus integerrimus
perennial herb
Larval Host
Bay Area native
Keystone species
Shatterberry
Arctostaphylos nummularia
perennial herb
Larval Host
Bay Area native
Keystone species
Sugarbush
Rhus ovata
perennial herb
Larval Host
Bird's-eye Gilia
Gilia tricolor subsp. tricolor
annual
Nectar
Bay Area native
Bitter Cherry
Prunus emarginata
tree
Larval Host
Bay Area native
Keystone species
California Coffeeberry
Frangula californica
shrub
Larval Host
Bay Area native
Madrone
Arbutus menziesii
tree
Nectar
Bay Area native
Keystone species
Milkmaids
Cardamine californica
perennial herb
Nectar
Bay Area native
Mt. Tamalpais Manzanita
Arctostaphylos montana ssp. montana
perennial herb
Nectar
Bay Area native
Keystone species
Whiteleaf Manzanita
Arctostaphylos viscida
perennial herb
Nectar
Bay Area native
Keystone species