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Host Plants

Flower name confirmed
Flower name Likely

Pacific Silver Fir

Abies amabilis

Grand Fir

Abies grandis

Subalpine Fir

Abies lasiocarpa

Red Alder

Alnus rubra

Sitka Spruce

Picea sitchensis

Western White Pine

Pinus monticola

Douglas Fir

Pseudotsuga menziesii

Western Red Cedar

Thuja plicata

Western Hemlock

Tsuga heterophylla

Mountain Hemlock

Tsuga mertensiana

Santa Lucia Fir

Abies bracteata

Balsam Fir

Abies concolor

Balsam Fir

Abies magnifica

Gray Alder

Alnus incana

Mountain Alder

Alnus incana ssp. tenuifolia

White Alder

Alnus rhombifolia

Knobcone Pine

Pinus attenuata

Lodgepole Pine

Pinus contorta

Shore Pine

Pinus contorta ssp. contorta

Tamarack Pine

Pinus contorta ssp. murrayana

Coulter Pine

Pinus coulteri

Jeffrey Pine

Pinus jeffreyi

Sugar Pine

Pinus lambertiana

Oneneedle Pinyon Pine

Pinus monophylla

Bishop Pine

Pinus muricata

Ponderosa Pine

Pinus ponderosa

Monterey Pine

Pinus radiata

Foothill Pine

Pinus sabiniana

Coast Douglas Fir

Pseudotsuga menziesii var. menziesii

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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