Plants that support Icarioides blue butterfly
12 plants
Alkali-marsh Butterweed
Senecio hydrophilus
perennial herb
caterpillars feed on foliage during spring-early summer development
Big Deervetch
Hosackia crassifolia var. crassifolia
perennial herb
Early season flight; larvae develop on host plant foliage
Bog Lupine
Lupinus polyphyllus
perennial herb
larval host plant, spring brood development
Broad-leaved Lupine
Lupinus latifolius var. latifolius
perennial herb
Larvae feed on lupine foliage, critical host plant for multiple generations
Chick lupine
Lupinus microcarpus var. densiflorus
annual
Important larval host plant for butterfly development
Pacific Pea
Lathyrus vestitus var. vestitus
vine
Larvae develop on various Lathyrus hosts
Red Maids*
Calandrinia menziesii
annual
larval foodplant during spring emergence and development
Scarlet Bugler
Penstemon centranthifolius
perennial herb
spring larval host plant for this specialized butterfly
Silver bush lupine
Lupinus albifrons
shrub
Host plant for caterpillar development
Summer Lupine
Lupinus formosus var. formosus
perennial herb
Larval food plant for this endemic California butterfly species
Yellow Coastal Bush Lupine
Lupinus arboreus
perennial herb
Spring adult nectar foraging