Host Plants
confirmed
LikelyQuaking Aspen
Populus tremuloides
Spreading Gooseberry
Ribes divaricatum
Gray Alder
Alnus incana
Mountain Alder
Alnus incana ssp. tenuifolia
White Alder
Alnus rhombifolia
Red Alder
Alnus rubra
Green Alder
Alnus viridis
Sitka Alder
Alnus viridis ssp. sinuata
Water Birch
Betula occidentalis
Fremont Cottonwood
Populus fremontii
Fremont Cottonwood
Populus fremontii ssp. fremontii
Black Cottonwood
Populus trichocarpa
Western Labrador Tea
Rhododendron columbianum
Pacific Rhododendron
Rhododendron macrophyllum
Western Labrador Tea
Rhododendron neoglandulosum
Western Azalea
Rhododendron occidentale
Western Azalea
Rhododendron occidentale var. paludosum
Bitter Gooseberry
Ribes amarum
Golden Currant
Ribes aureum
Golden Currant
Ribes aureum var. aureum
Golden Currant
Ribes aureum var. gracillimum
Trailing Gooseberry
Ribes binominatum
Stink Currant
Ribes bracteosum
Hillside Gooseberry
Ribes californicum
Hillside Gooseberry
Ribes californicum var. californicum
Wax Currant
Ribes cereum
Wax Currant
Ribes cereum var. cereum
Straggly Gooseberry
Ribes divaricatum var. pubiflorum
White Flowering Currant
Ribes indecorum
Whitestem Gooseberry
Ribes inerme
Whitestem Gooseberry
Ribes inerme var. inerme
Whitestem Gooseberry
Ribes inerme var. klamathense
Prickly Currant
Ribes lacustre
Woolly-flowered Gooseberry
Ribes lasianthum
Gummy Gooseberry
Ribes lobbii
Chaparral Currant
Ribes malvaceum
Chaparral Currant
Ribes malvaceum var. malvaceum
Marshall's Gooseberry
Ribes marshallii
Canyon Gooseberry
Ribes menziesii
Canyon Gooseberry
Ribes menziesii var. menziesii
Alpine Prickly Currant
Ribes montigenum
Sierra Currant
Ribes nevadense
Rock Gooseberry
Ribes quercetorum
Sierra Gooseberry
Ribes roezlii
Hoary Gooseberry
Ribes roezlii var. amictum
Shinyleaf Currant
Ribes roezlii var. cruentum
Sierra Gooseberry
Ribes roezlii var. roezlii
Red Flowering Currant
Ribes sanguineum
Pink-flowering Currant
Ribes sanguineum var. glutinosum
Redflower Currant
Ribes sanguineum var. sanguineum
Santa Lucia Gooseberry
Ribes sericeum
Fuchsiaflower Gooseberry
Ribes speciosum
Desert Gooseberry
Ribes velutinum
Victor's Gooseberry
Ribes victoris
Hall's Sticky Currant
Ribes viscosissimum
Booth's Willow
Salix boothii
Brewer's Willow
Salix breweri
Mountain Willow
Salix eastwoodiae
Sandbar Willow
Salix exigua
Narrow-leaved Willow
Salix exigua var. exigua