Host Plants
confirmed
LikelyBox Elder
Acer negundo
Gray Alder
Alnus incana
Red Alder
Alnus rubra
Red Osier Dogwood
Cornus sericea
Quaking Aspen
Populus tremuloides
Russet Buffaloberry
Shepherdia canadensis
Rocky Mountain Maple
Acer glabrum
Rocky Mountain Maple
Acer glabrum var. diffusum
Mountain Maple
Acer glabrum var. glabrum
Big Leaf Maple
Acer macrophyllum
Mountain Alder
Alnus incana ssp. tenuifolia
White Alder
Alnus rhombifolia
Western Serviceberry
Amelanchier alnifolia
Glabrous Serviceberry
Amelanchier alnifolia var. pumila
Pacific Serviceberry
Amelanchier alnifolia var. semiintegrifolia
Pale Serviceberry
Amelanchier pallida
Service Berry
Amelanchier utahensis
Resin Birch
Betula glandulosa
Water Birch
Betula occidentalis
Arching Ceanothus
Ceanothus arcuatus
Mountain Whitethorn
Ceanothus cordulatus
Buckbrush
Ceanothus cuneatus
Buckbrush
Ceanothus cuneatus var. cuneatus
Buckbrush
Ceanothus cuneatus var. ramulosus
Sandscrub Ceanothus
Ceanothus dentatus
Calistoga Ceanothus
Ceanothus divergens
Pine Mat
Ceanothus diversifolius
Wavy Leaved Ceanothus
Ceanothus foliosus
Wavy Leaved Ceanothus
Ceanothus foliosus var. foliosus
Fresno Ceanothus
Ceanothus fresnensis
Point Reyes Ceanothus
Ceanothus gloriosus
Glory Brush
Ceanothus gloriosus var. exaltatus
Point Reyes Ceanothus
Ceanothus gloriosus var. gloriosus
Mt. Vision Ceanothus
Ceanothus gloriosus var. porrectus
Coast Whitethorn
Ceanothus incanus
Deerbrush
Ceanothus integerrimus
Deerbrush
Ceanothus integerrimus var. macrothyrsus
Jepson Ceanothus
Ceanothus jepsonii
Lemmon's Ceanothus
Ceanothus lemmonii
Chaparral Whitethorn
Ceanothus leucodermis
Mason's Ceanothus
Ceanothus masonii
Hairy Ceanothus
Ceanothus oliganthus
Jim Brush
Ceanothus oliganthus var. sorediatus
Palmer Lilac
Ceanothus palmeri
Wartleaf Ceanothus
Ceanothus papillosus
Parry Ceanothus
Ceanothus parryi
Little Leaf Ceanothus
Ceanothus parvifolius
Pinemat
Ceanothus prostratus
Mahala Mats
Ceanothus prostratus var. occidentalis
Large Leaved Mahala Mat
Ceanothus prostratus var. prostratus
Blueblossom Ceanothus
Ceanothus thyrsiflorus
Carmel Ceanothus
Ceanothus thyrsiflorus var. griseus
Creeping Blueblossom
Ceanothus thyrsiflorus var. thyrsiflorus
Woollyleaf Ceanothus
Ceanothus tomentosus
Tobacco Brush
Ceanothus velutinus
Mojave Ceanothus
Ceanothus vestitus
Western Redbud
Cercis occidentalis
Brown Dogwood
Cornus glabrata
Pacific Dogwood
Cornus nuttallii
Western Dogwood
Cornus sericea ssp. occidentalis