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Host Plants

Flower name confirmed
Flower name Likely

Vine Maple

Acer circinatum

Rocky Mountain Maple

Acer glabrum

Rocky Mountain Maple

Acer glabrum var. diffusum

Mountain Maple

Acer glabrum var. glabrum

Big Leaf Maple

Acer macrophyllum

Box Elder

Acer negundo

Gray Alder

Alnus incana

Mountain Alder

Alnus incana ssp. tenuifolia

White Alder

Alnus rhombifolia

Red Alder

Alnus rubra

Beach Strawberry

Fragaria chiloensis

Woodland Strawberry

Fragaria vesca

Mountain Strawberry

Fragaria virginiana

Coffeeberry

Frangula californica

California Coffeeberry

Frangula californica ssp. californica

Western California Coffeeberry

Frangula californica ssp. occidentalis

Hoary Coffeeberry

Frangula californica ssp. tomentella

Cascara Sagrada

Frangula purshiana

Sierra Coffeeberry

Frangula rubra

Red Buckthorn

Frangula rubra ssp. rubra

Oregon Crab Apple

Malus fusca

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

Quaking Aspen

Populus tremuloides

Black Cottonwood

Populus trichocarpa

Desert Peach

Prunus andersonii

Bitter Cherry

Prunus emarginata

Desert Range Almond

Prunus fasciculata

Prunus fasciculata var. fasciculata

Sand Almond

Prunus fasciculata var. punctata

Hollyleaf Cherry

Prunus ilicifolia

Hollyleaf Cherry

Prunus ilicifolia ssp. ilicifolia

Klamath Plum

Prunus subcordata

Chokecherry

Prunus virginiana

Western Chokecherry

Prunus virginiana var. demissa

Alder Buckthorn

Rhamnus alnifolia

Spiny Redberry

Rhamnus crocea

Hollyleaf Redberry

Rhamnus ilicifolia

Booth's Willow

Salix boothii

Brewer's Willow

Salix breweri

Mountain Willow

Salix eastwoodiae

Sandbar Willow

Salix exigua

Narrow-leaved Willow

Salix exigua var. exigua

Sandbar Willow

Salix exigua var. hindsiana

Geyer's Willow

Salix geyeriana

Goodding's Black Willow

Salix gooddingii

Coastal Willow

Salix hookeriana

Jepson's Willow

Salix jepsonii

Red Willow

Salix laevigata

Shining Willow

Salix lasiandra

Tail-leaf Willow

Salix lasiandra var. caudata

Yellow Willow

Salix lasiandra var. lasiandra

Arroyo Willow

Salix lasiolepis

Lemmon's Willow

Salix lemmonii

Tongueleaf Willow

Salix ligulifolia

Yellow Willow

Salix lutea

Dusky Willow

Salix melanopsis

Sierra Willow

Salix orestera

Alpine Willow

Salix petrophila

Tea Leaved Willow

Salix planifolia

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