Silvery blue butterfly
Glaucopsyche lygdamus
CA: Threatened
California Threatened; Species of Special Concern
Small silvery-blue butterfly with orange hindwing spots and dark wing fringes. Caterpillars feed on native lupines and locoweed. Host plant association makes presence reliable Bay Area native plant indicator.
Plants that support Silvery blue butterfly
23 plants
Pacific Black-snakeroot
Sanicula crassicaulis
perennial herb
Larval Host
Bog Lupine
Lupinus polyphyllus
perennial herb
Larval Host
California Golden Violet
Viola pedunculata
perennial herb
Foliage
Chick lupine
Lupinus microcarpus var. densiflorus
annual
Larval Host
Delta Tule Pea
Lathyrus jepsonii var. californicus
perennial herb
Larval Host
Old Man's Whiskers
Geum triflorum
perennial herb
Larval Host
Oregon Bigroot
Marah oregana
vine
Larval Host
Pacific Pea
Lathyrus vestitus var. vestitus
vine
Larval Host
Red Maids*
Calandrinia menziesii
annual
Larval Host
Rodeo Rose Arroyo Lupine
Lupinus succulentus 'Rodeo Rose'
annual
Larval Host
Sky Lupine
Lupinus nanus
annual
Larval Host
Vetch
Vicia gigantea
vine
Larval Host
American Willowherb
Epilobium ciliatum subsp. ciliatum
perennial herb
Nectar
Baby blue eyes
Nemophila menziesii
annual
Nectar
Blue Flax
Linum lewisii
perennial herb
Larval Host
California Buttercup
Ranunculus californicus var. californicus
perennial herb
Nectar
California Manroot
Marah fabacea
vine
Larval Host
Cascara Sagrada
Frangula purshiana
shrub
Nectar
False Solomon's Seal
Maianthemum stellatum
perennial herb
Nectar
Goldeneggs
Taraxia ovata
perennial herb
Larval Host
Great Camas
Camassia leichtlinii ssp. suksdorfii
perennial herb
Nectar
Menzies' fiddleneck
Amsinckia intermedia
annual
Larval Host
Mosquito Bills
Primula hendersonii
perennial herb
Nectar