Host Plants
confirmed
LikelyRocky Mountain Maple
Acer glabrum
Rocky Mountain Maple
Acer glabrum var. diffusum
Mountain Maple
Acer glabrum var. glabrum
Big Leaf Maple
Acer macrophyllum
Gray Alder
Alnus incana
Mountain Alder
Alnus incana ssp. tenuifolia
White Alder
Alnus rhombifolia
Water Birch
Betula occidentalis
Dwarf Pine
Pinus albicaulis
Knobcone Pine
Pinus attenuata
Lodgepole Pine
Pinus contorta
Bolander's Beach Pine
Pinus contorta ssp. bolanderi
Tamarack Pine
Pinus contorta ssp. murrayana
Limber Pine
Pinus flexilis
Jeffrey Pine
Pinus jeffreyi
Sugar Pine
Pinus lambertiana
Oneneedle Pinyon Pine
Pinus monophylla
Western White Pine
Pinus monticola
Ponderosa Pine
Pinus ponderosa
Foothill Pine
Pinus sabiniana
Fremont Cottonwood
Populus fremontii
Quaking Aspen
Populus tremuloides
Black Cottonwood
Populus trichocarpa
Booth's Willow
Salix boothii
Shortfruit Willow
Salix brachycarpa
Short-fruited Willow
Salix brachycarpa var. brachycarpa
Drummond's Willow
Salix drummondiana
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
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
Snow Willow
Salix nivalis
Sierra Willow
Salix orestera
Alpine Willow
Salix petrophila
Tea Leaved Willow
Salix planifolia
Mackenzie's Willow
Salix prolixa
Scouler's Willow
Salix scouleriana
Sitka Willow
Salix sitchensis
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