Host Plants
confirmed
LikelyShinyleaf 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
Santa Cruz Island Gooseberry
Ribes thacherianum
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
Del Norte Willow
Salix delnortensis
Drummond's Willow
Salix drummondiana
Mountain Willow
Salix eastwoodiae
Sandbar Willow
Salix exigua
Narrow-leaved Willow
Salix exigua var. exigua
Sandbar Willow
Salix exigua var. hindsiana
Geyer's Willow
Salix geyeriana
Goodding's Black Willow
Salix gooddingii
Coastal Willow
Salix hookeriana
Jepson's Willow
Salix jepsonii
Red Willow
Salix laevigata
Shining Willow
Salix lasiandra
Tail-leaf Willow
Salix lasiandra var. caudata
Yellow Willow
Salix lasiandra var. lasiandra
Arroyo Willow
Salix lasiolepis
Lemmon's Willow
Salix lemmonii
Tongueleaf Willow
Salix ligulifolia
Yellow Willow
Salix lutea
Dusky Willow
Salix melanopsis
Snow Willow
Salix nivalis
Sierra Willow
Salix orestera
Alpine Willow
Salix petrophila
Tea Leaved Willow
Salix planifolia
Mackenzie's Willow
Salix prolixa
Scouler's Willow
Salix scouleriana
Sitka Willow
Salix sitchensis
Tracy's Willow
Salix tracyi
California Mountain Ash
Sorbus californica
Mountain Ash
Sorbus scopulina
Western Mountain Ash
Sorbus sitchensis
Douglas's Spirea
Spiraea douglasii
Meadow Sweet
Spiraea splendens
Western Poison Oak
Toxicodendron diversilobum