Host Plants
confirmed
LikelyGray Alder
Alnus incana
Red Osier Dogwood
Cornus sericea
Quaking Aspen
Populus tremuloides
Chokecherry
Prunus virginiana
Vine Maple
Acer circinatum
Rocky Mountain Maple
Acer glabrum
Mountain Maple
Acer glabrum var. glabrum
Big Leaf Maple
Acer macrophyllum
Box Elder
Acer negundo
Mountain Alder
Alnus incana ssp. tenuifolia
White Alder
Alnus rhombifolia
Red Alder
Alnus rubra
Western Serviceberry
Amelanchier alnifolia
Glabrous Serviceberry
Amelanchier alnifolia var. pumila
Pale Serviceberry
Amelanchier pallida
Service Berry
Amelanchier utahensis
Resin Birch
Betula glandulosa
Water Birch
Betula occidentalis
Arching Ceanothus
Ceanothus arcuatus
Rincon Ridge Ceanothus
Ceanothus confusus
Mountain Whitethorn
Ceanothus cordulatus
Buckbrush
Ceanothus cuneatus
Buckbrush
Ceanothus cuneatus var. cuneatus
Lompoc Ceanothus
Ceanothus cuneatus var. fascicularis
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
La Cuesta Ceanothus
Ceanothus foliosus var. medius
Vine Hill Ceanothus
Ceanothus foliosus var. vineatus
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
Santa Barbara Ceanothus
Ceanothus impressus
Santa Barbara Ceanothus
Ceanothus impressus var. impressus
Nipomo Mesa Ceanothus
Ceanothus impressus var. nipomensis
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
Big Pod Ceanothus
Ceanothus megacarpus
Bigpod Ceanothus
Ceanothus megacarpus var. megacarpus
Hairy Ceanothus
Ceanothus oliganthus
Hairy Ceanothus
Ceanothus oliganthus var. oliganthus
Jim Brush
Ceanothus oliganthus var. sorediatus
Palmer Lilac
Ceanothus palmeri
Wartleaf Ceanothus
Ceanothus papillosus
Parry Ceanothus
Ceanothus parryi
Little Leaf Ceanothus
Ceanothus parvifolius
Kern Ceanothus
Ceanothus pinetorum
Pinemat
Ceanothus prostratus
Large Leaved Mahala Mat
Ceanothus prostratus var. prostratus
Dwarf Ceanothus
Ceanothus pumilus