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Bayensis checkerspot butterfly

Euphydryas editha bayensis

Federal: Endangered, CA: Endangered

Federally endangered since 1967; restricted to serpentine grasslands in Bay Area

Plants that support Bayensis checkerspot butterfly

3 plants

California goldfields

Lasthenia californica

critical

annual

Primary larval host plant for this Bay Area endemic subspecies during early spring emergence

Bay Area native

Coastal Tidy-tips

Layia platyglossa

moderate

annual

Nectar forage during spring emergence and breeding

Bay Area native

Exserted Indian Paintbrush

Castilleja exserta subsp. exserta

critical

annual

critical larval food plant for caterpillars in spring emergence

Bay Area native