Host Plants
confirmed
LikelyGray Alder
Alnus incana
Red Alder
Alnus rubra
Service Berry
Amelanchier utahensis
Greenleaf Manzanita
Arctostaphylos patula
Resin Birch
Betula glandulosa
Mountain Whitethorn
Ceanothus cordulatus
Buckbrush
Ceanothus cuneatus
Coast Whitethorn
Ceanothus incanus
Deerbrush
Ceanothus integerrimus
Blueblossom Ceanothus
Ceanothus thyrsiflorus
Tobacco Brush
Ceanothus velutinus
Mountain Mahogany
Cercocarpus betuloides
Curl Leaf Mountain Mahogany
Cercocarpus ledifolius
Wild Crab Apple
Peraphyllum ramosissimum
Western White Pine
Pinus monticola
Narrow Leaved Cottonwood
Populus angustifolia
Fremont Cottonwood
Populus fremontii
Quaking Aspen
Populus tremuloides
Black Cottonwood
Populus trichocarpa
Desert Peach
Prunus andersonii
Bitter Cherry
Prunus emarginata
Desert Range Almond
Prunus fasciculata
Klamath Plum
Prunus subcordata
Chokecherry
Prunus virginiana
Douglas Fir
Pseudotsuga menziesii
Antelope Bitterbrush
Purshia tridentata
Coast Live Oak
Quercus agrifolia
Valley Oak
Quercus lobata
Golden Currant
Ribes aureum
Western Mountain Ash
Sorbus sitchensis
Western Red Cedar
Thuja plicata
Western Hemlock
Tsuga heterophylla
California Buckeye
Aesculus californica
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
Pacific Madrone
Arbutus menziesii
Arching Ceanothus
Ceanothus arcuatus
Hoaryleaf Ceanothus
Ceanothus crassifolius
Buckbrush
Ceanothus cuneatus var. cuneatus
Buckbrush
Ceanothus cuneatus var. ramulosus
Sandscrub Ceanothus
Ceanothus dentatus
Calistoga Ceanothus
Ceanothus divergens
Pine Mat
Ceanothus diversifolius
Coyote Ceanothus
Ceanothus ferrisiae
Wavy Leaved Ceanothus
Ceanothus foliosus
Wavy Leaved Ceanothus
Ceanothus foliosus var. foliosus
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
Desert Ceanothus
Ceanothus greggii
Deerbrush
Ceanothus integerrimus var. macrothyrsus
Lemmon's Ceanothus
Ceanothus lemmonii
Chaparral Whitethorn
Ceanothus leucodermis