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Host Plants

Flower name confirmed
Flower name Likely

Gray Alder

Alnus incana

Western False Indigo

Amorpha fruticosa

Quaking Aspen

Populus tremuloides

Gray Willow

Salix bebbiana

Arroyo Willow

Salix lasiolepis

Mountain Alder

Alnus incana ssp. tenuifolia

White Alder

Alnus rhombifolia

California False Indigo

Amorpha californica

California False Indigo

Amorpha californica var. californica

Water Birch

Betula occidentalis

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

Black Cottonwood

Populus trichocarpa

Sandbar Willow

Salix exigua

Narrow-leaved Willow

Salix exigua var. exigua

Sandbar Willow

Salix exigua var. hindsiana

Goodding's Black Willow

Salix gooddingii

Red Willow

Salix laevigata

Shining Willow

Salix lasiandra

Tail-leaf Willow

Salix lasiandra var. caudata

Yellow Willow

Salix lasiandra var. lasiandra

Lemmon's Willow

Salix lemmonii

Yellow Willow

Salix lutea

Scouler's Willow

Salix scouleriana

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