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Host Plants

Flower name confirmed
Flower name Likely

Cascara Sagrada

Frangula purshiana

Garry's Oak

Quercus garryana

Tall Oregon Grape

Berberis aquifolium

Piper's Barberry

Berberis aquifolium var. aquifolium

Shining Netvein Barberry

Berberis aquifolium var. dictyota

Dwarf Mahonia

Berberis aquifolium var. repens

Fremont Barberry

Berberis fremontii

Red Fruited Mahonia

Berberis haematocarpa

Berberis higginsiae

Oregon Grape

Berberis nervosa

Nevin's Barberry

Berberis nevinii

Coast Barberry

Berberis pinnata

California Barberry

Berberis pinnata ssp. pinnata

Crataegus castlegarensis

Black Hawthorn

Crataegus douglasii

Klamath Hawthorn

Crataegus gaylussacia

Coffeeberry

Frangula californica

California Coffeeberry

Frangula californica ssp. californica

Serpentine Hoary Coffeeberry

Frangula californica ssp. crassifolia

Sierra Hoary Coffeeberry

Frangula californica ssp. cuspidata

Western California Coffeeberry

Frangula californica ssp. occidentalis

Hoary Coffeeberry

Frangula californica ssp. tomentella

Frangula purshiana ssp. annonifolia

Frangula purshiana ssp. purshiana

Sierra Coffeeberry

Frangula rubra

Frangula rubra ssp. modocensis

Frangula rubra ssp. obtusissima

Red Buckthorn

Frangula rubra ssp. rubra

Frangula rubra ssp. yosemitana

Desert Peach

Prunus andersonii

Bitter Cherry

Prunus emarginata

Desert Range Almond

Prunus fasciculata

Prunus fasciculata var. fasciculata

Desert Apricot

Prunus fremontii

Hollyleaf Cherry

Prunus ilicifolia

Hollyleaf Cherry

Prunus ilicifolia ssp. ilicifolia

Catalina Cherry

Prunus ilicifolia ssp. lyonii

Klamath Plum

Prunus subcordata

Chokecherry

Prunus virginiana

Western Chokecherry

Prunus virginiana var. demissa

Coast Live Oak

Quercus agrifolia

Coast Live Oak

Quercus agrifolia var. agrifolia

Coastal Live Oak

Quercus agrifolia var. oxyadenia

Scrub Oak

Quercus berberidifolia

Cedros Island Oak

Quercus cedrosensis

Canyon Live Oak

Quercus chrysolepis

Muller Oak

Quercus cornelius-mulleri

Blue Oak

Quercus douglasii

Nuttall's Scrub Oak

Quercus dumosa

Leather Oak

Quercus durata

Leather Oak

Quercus durata var. durata

Engelmann Oak

Quercus engelmannii

Garry's Oak

Quercus garryana var. breweri

Oregon White Oak

Quercus garryana var. garryana

Oregon White Oak

Quercus garryana var. semota

Tucker's Oak

Quercus john-tuckeri

Black Oak

Quercus kelloggii

Valley Oak

Quercus lobata

Pacific Oak

Quercus pacifica

Desert Oak

Quercus palmeri

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