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Host Plants

Flower name confirmed
Flower name Likely

Water Birch

Betula occidentalis

Buckbrush

Ceanothus cuneatus

Red Osier Dogwood

Cornus sericea

Quaking Aspen

Populus tremuloides

Chokecherry

Prunus virginiana

Arroyo Willow

Salix lasiolepis

Gray Alder

Alnus incana

Mountain Alder

Alnus incana ssp. tenuifolia

White Alder

Alnus rhombifolia

Red Alder

Alnus rubra

Hoaryleaf Ceanothus

Ceanothus crassifolius

Buckbrush

Ceanothus cuneatus var. cuneatus

Buckbrush

Ceanothus cuneatus var. ramulosus

Sandscrub Ceanothus

Ceanothus dentatus

Calistoga Ceanothus

Ceanothus divergens

Coyote Ceanothus

Ceanothus ferrisiae

Wavy Leaved Ceanothus

Ceanothus foliosus

Wavy Leaved Ceanothus

Ceanothus foliosus var. foliosus

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

Jepson Ceanothus

Ceanothus jepsonii

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

Pinemat

Ceanothus prostratus

Large Leaved Mahala Mat

Ceanothus prostratus var. prostratus

Monterey Ceanothus

Ceanothus rigidus

Blueblossom Ceanothus

Ceanothus thyrsiflorus

Carmel Ceanothus

Ceanothus thyrsiflorus var. griseus

Creeping Blueblossom

Ceanothus thyrsiflorus var. thyrsiflorus

Tobacco Brush

Ceanothus velutinus

Brown Dogwood

Cornus glabrata

Pacific Dogwood

Cornus nuttallii

Western Dogwood

Cornus sericea ssp. occidentalis

Creek Dogwood

Cornus sericea ssp. sericea

Pink Honeysuckle

Lonicera hispidula

Chaparral Honeysuckle

Lonicera interrupta

Black Twinberry

Lonicera involucrata

Twinberry Honeysuckle

Lonicera involucrata var. ledebourii

Southern Honeysuckle

Lonicera subspicata

Santa Barbara Honeysuckle

Lonicera subspicata var. denudata

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

Black Cottonwood

Populus trichocarpa

Desert Peach

Prunus andersonii

Bitter Cherry

Prunus emarginata

Hollyleaf Cherry

Prunus ilicifolia

Klamath Plum

Prunus subcordata

Western Chokecherry

Prunus virginiana var. demissa

Golden Currant

Ribes aureum

Golden Currant

Ribes aureum var. aureum

Golden Currant

Ribes aureum var. gracillimum

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