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Host Plants

Flower name confirmed
Flower name Likely

Gray Alder

Alnus incana

Red Alder

Alnus rubra

Pacific Madrone

Arbutus menziesii

Oregon Crab Apple

Malus fusca

Quaking Aspen

Populus tremuloides

Chokecherry

Prunus virginiana

White Alder

Alnus rhombifolia

Brown Dogwood

Cornus glabrata

Pacific Dogwood

Cornus nuttallii

Red Osier Dogwood

Cornus sericea

Western Dogwood

Cornus sericea ssp. occidentalis

Creek Dogwood

Cornus sericea ssp. sericea

Beaked Hazelnut

Corylus cornuta

California Hazel

Corylus cornuta ssp. californica

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

Black Cottonwood

Populus trichocarpa

Bitter Cherry

Prunus emarginata

Hollyleaf Cherry

Prunus ilicifolia

Hollyleaf Cherry

Prunus ilicifolia ssp. ilicifolia

Catalina Cherry

Prunus ilicifolia ssp. lyonii

Klamath Plum

Prunus subcordata

Western Chokecherry

Prunus virginiana var. demissa

Brewer's Willow

Salix breweri

Sandbar Willow

Salix exigua

Sandbar Willow

Salix exigua var. hindsiana

Goodding's Black Willow

Salix gooddingii

Coastal Willow

Salix hookeriana

Red Willow

Salix laevigata

Shining Willow

Salix lasiandra

Yellow Willow

Salix lasiandra var. lasiandra

Arroyo Willow

Salix lasiolepis

Yellow Willow

Salix lutea

Dusky Willow

Salix melanopsis

Scouler's Willow

Salix scouleriana

Sitka Willow

Salix sitchensis

Tracy's Willow

Salix tracyi

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