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Host Plants

Flower name confirmed
Flower name Likely

Box Elder

Acer negundo

Gray Alder

Alnus incana

Quaking Aspen

Populus tremuloides

Chokecherry

Prunus virginiana

Big Leaf Maple

Acer macrophyllum

White Alder

Alnus rhombifolia

Red Alder

Alnus rubra

Western Serviceberry

Amelanchier alnifolia

Pacific Serviceberry

Amelanchier alnifolia var. semiintegrifolia

Pale Serviceberry

Amelanchier pallida

Service Berry

Amelanchier utahensis

Bunchberry

Cornus canadensis

Brown Dogwood

Cornus glabrata

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

Oregon Crab Apple

Malus fusca

Sitka Spruce

Picea sitchensis

Knobcone Pine

Pinus attenuata

Lodgepole Pine

Pinus contorta

Bolander's Beach Pine

Pinus contorta ssp. bolanderi

Shore Pine

Pinus contorta ssp. contorta

Bishop Pine

Pinus muricata

Monterey Pine

Pinus radiata

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

Bitter Cherry

Prunus emarginata

Hollyleaf Cherry

Prunus ilicifolia

Klamath Plum

Prunus subcordata

Western Chokecherry

Prunus virginiana var. demissa

California Wildrose

Rosa californica

Wood Rose

Rosa gymnocarpa

Nootka Rose

Rosa nutkana

Nootka Rose

Rosa nutkana ssp. nutkana

Pine Rose

Rosa pinetorum

Swamp Rose

Rosa pisocarpa

Ground Rose

Rosa spithamea

Sandbar Willow

Salix exigua

Sandbar Willow

Salix exigua var. hindsiana

Coastal Willow

Salix hookeriana

Red Willow

Salix laevigata

Shining Willow

Salix lasiandra

Yellow Willow

Salix lasiandra var. lasiandra

Arroyo Willow

Salix lasiolepis

Dusky Willow

Salix melanopsis

Scouler's Willow

Salix scouleriana

Sitka Willow

Salix sitchensis

Huckleberry

Vaccinium cespitosum

Evergreen Huckleberry

Vaccinium ovatum

Red Huckleberry

Vaccinium parvifolium

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