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Host Plants

Flower name confirmed
Flower name Likely

Quaking Aspen

Populus tremuloides

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

Shortleaf Baccharis

Baccharis brachyphylla

Saltmarsh Baccharis

Baccharis glutinosa

Malibu Baccharis

Baccharis malibuensis

Coyote Bush

Baccharis pilularis

Coyote Brush

Baccharis pilularis ssp. consanguinea

Coyote Brush

Baccharis pilularis ssp. pilularis

Plummer's Baccharis

Baccharis plummerae

San Simeon Baccharis

Baccharis plummerae ssp. glabrata

Plummer's Baccharis

Baccharis plummerae ssp. plummerae

Mulefat

Baccharis salicifolia

Mule Fat

Baccharis salicifolia ssp. salicifolia

Emory's Baccharis

Baccharis salicina

Broom Baccharis

Baccharis sarothroides

Desert Baccharis

Baccharis sergiloides

Encinitas Baccharis

Baccharis vanessae

Sugarberry

Celtis laevigata

Western Hackberry

Celtis reticulata

Dwarf Ash

Fraxinus anomala

California Ash

Fraxinus dipetala

Oregon Ash

Fraxinus latifolia

Chaparral Ash

Fraxinus parryi

Velvet Ash

Fraxinus velutina

Western Sycamore

Platanus racemosa

Narrow Leaved Cottonwood

Populus angustifolia

Fremont Cottonwood

Populus fremontii

Fremont Cottonwood

Populus fremontii ssp. fremontii

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

Desert Apricot

Prunus fremontii

Hollyleaf Cherry

Prunus ilicifolia

Hollyleaf Cherry

Prunus ilicifolia ssp. ilicifolia

Catalina Cherry

Prunus ilicifolia ssp. lyonii

Klamath Plum

Prunus subcordata

Klamath Plum

Prunus subcordata var. subcordata

Chokecherry

Prunus virginiana

Western Chokecherry

Prunus virginiana var. demissa

Coast Live Oak

Quercus agrifolia

Coast Live Oak

Quercus agrifolia var. agrifolia

Coastal Live Oak

Quercus agrifolia var. oxyadenia

Alvord Oak

Quercus alvordiana

Scrub Oak

Quercus berberidifolia

Cedros Island Oak

Quercus cedrosensis

Canyon Live Oak

Quercus chrysolepis

Muller Oak

Quercus cornelius-mulleri

Blue Oak

Quercus douglasii

Nuttall's Scrub Oak

Quercus dumosa

Leather Oak

Quercus durata

Leather Oak

Quercus durata var. durata

San Gabriel Oak

Quercus durata var. gabrielensis

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