Aphid
Aphidoidea
470 host plants
Last updated
Data Coverage 3 of 6 dimensions
During growing season you will observe sticky honeydew coating leaves and twigs, followed by sooty mold that blackens foliage. Look for clusters of soft-bodied, pear-shaped insects in green, gray, or black on new growth and shoot tips. On conifers like firs and spruces, larger blackish conifer aphids (Cinara spp.) create obvious colonies on main branches.
Spray infested areas forcefully with water; repeat every few days for light infestations. Release ladybird beetles, lacewings, or parasitoid wasps which naturally control aphids when broad-spectrum insecticides are avoided. Apply insecticidal soap or horticultural oil when cool (below 85F). Neem oil requires repeated applications every 7 to 10 days. Reserve pyrethrin sprays for severe outbreaks.
Quick Reference
Order
Hemiptera
Type
sucking-insect
Host Plants
470
Peak Activity
Peak March-July depending on host; populations crash by late June on most hos...
Monitoring & Action
How to Monitor
Scout new growth weekly for early colonies (March-April). By week 2-3, look for natural enemies: ladybug larvae (tiny, elongated, black and orange), syrphid fly larvae (green maggots), parasitoid mummies (tan, swollen, papery aphids). Monitor mummy ratios to live aphid counts. Presence of predators means waiting is the correct response.
When to Act
Establish 3-week waiting period from first detection of colonies. If by week 3 predator populations (lady beetles, lacewings, syrphids) are visible and mummy counts are rising, allow natural control to proceed - do not spray. Treat only if: (1) populations are growing despite 3 weeks' waiting, (2) mummy ratios are flat, (3) plant shows stress. For heavy aphids on young trees, water spray dislodges without harming predators.
What Damage Looks Like
Asparagus aphids are small (1⁄16"), powdery gray to gray-green insects. They may be winged or wingless. They feed in colonies on the ferns of asparagus and are typically found at the base of leaves. Aphid feeding causes severe stunting of the foliage and gives fronds a tufted, blue-gray appearance. Shoots of mature plants are severely stunted. Seedling plants may be killed. Asparagus aphids produce honeydew, a sweet, sticky material which may attract ants or become covered with a growth of dark sooty mold. The aphids overwinter as eggs, which are laid on the ferns in the fall as the ferns begi
Cultural Controls
- Many parasites and predators attack aphids.
- Monitor the proportion of aphid mummies to unparasitized adults, and the number of predators such as lady beetles.
- If the biocontrol agents appear to be gaining control, avoid sprays which would disrupt this system.
- Most products available for aphid control are highly disruptive to natural enemy populations.
- Controlling weeds late in the season may help reduce overwintering populations.
- Aphid populations...
Host Plants (470)
Acer buergerianum Trident Maple, Three-toothed Maple Acer campestre Hedge Maple, Field Maple, Common Maple Acer capillipes Red Stripebark Maple, Red Snakebark Maple, Hakkoda Maple Acer carpinifolium Hornbeam Maple Acer circinatum Vine, Maple Acer coriaceifolium Leatherleaf Maple Acer crataegifolium Hawthorn, Maple Acer davidii David Maple, Père David's Maple Acer freemanii Freeman Maple, Hybrid Red Maple Acer ginnala Acer ginnala Acer glabrum Rocky Mountain Maple, Rock Maple, Douglas Maple, Dwarf Maple Acer glabrum var. douglasii Douglas Maple, Dwarf Maple, Rocky Mountain Maple Acer grandidentatum Bigtooth Maple, Western Mountain Sugar Maple, Rocky Mountain Sugar Maple Acer griseum Paperbark Maple Acer henryi Henry's Maple Acer japonicum Fullmoon Maple Acer macrophyllum Bigleaf Maple Acer maximowiczianum Nikko Maple Acer miyabei Miyabe Maple Acer monspessulanum Montpellier Maple Acer negundo Boxelder Manitoba Maple, Ash-leaved Maple Acer nipponicum Nippon Maple Acer oblongum Evergreen Maple, Smooth Leaf Maple Acer oliverianum Oliver Maple Acer opalus subsp. obtusatum Bosnian Maple Acer palmatum Japanese Maple Acer palmatum var. dissectum Dissected Japanese Maple Acer pensylvanicum Striped Maple, Moosewood Maple Acer pentaphyllum Acer pentaphyllum (no common name) Acer pictum Painted Maple Acer platanoides Norway Maple Acer pseudoplatanus Planetree Maple, Sycamore, Maple Acer rubrum Red Maple Acer rufinerve Redvein Maple, Honshu Maple Acer saccharinum Silver Maple Acer saccharum Sugar Maple Acer sempervirens Cretan Maple Acer shirasawanum Shirasawa Maple Acer spicatum Mountain Maple, Moose Maple Acer tataricum Tatarian Maple, Tartarian Maple Acer tataricum subsp. ginnala Amur Maple Acer tegmentosum Manchurian Stripebark Maple, Manchustriped Maple Acer triflorum Three Flowered Maple Acer truncatum Purpleblow Maple, Shantung Maple Acer velutinum Velvet Maple Alnus alnobetula Circumpolar alder group Alnus alnobetula subsp. crispa American Green Alder, Mountain Alder, Green Alder Alnus alnobetula subsp. sinuata Sitka Alder, Wavy Leaf Alder Alnus cordata Italian Alder Alnus glutinosa Common Alder, European Alder, Black Alder Alnus incana subsp. rugosa Speckled Alder Alnus incana subsp. tenuifolia Thinleaf Alder, Mountain Alder Alnus japonica Japanese Alder Alnus rhombifolia White Alder Alnus rubra Red Alder Alnus rubra f. pinnatisecta Cutleaf Red Alder Alnus sinuata Sitka Alder Arbutus unedo Strawberry Tree, Killarney Strawberry Tree, Madroño Arctostaphylos andersonii Santa Cruz Manzanita, Anderson's Manzanita, Heartleaf Manzanita Arctostaphylos austin Arctostaphylos austin Arctostaphylos bakeri Baker Manzanita Arctostaphylos canescens Hoary Manzanita, Downy-leaf Manzanita Arctostaphylos columbiana Hairy Manzanita Arctostaphylos confertiflora Santa Rosa Island Manzanita Arctostaphylos densiflora Sonoma Manzanita, Vinehill Manzanita Arctostaphylos edmundsii Little Sur Manzanita Arctostaphylos hookeri Hooker's Manzanita, Monterey Manzanita Arctostaphylos hookeri subsp. franciscana Franciscan Manzanita Arctostaphylos insularis Island Manzanita Arctostaphylos manzanita Parry Manzanita, Common Manzanita Arctostaphylos montaraensis Montara Manzanita Arctostaphylos nevadensis Pinemat Manzanita Arctostaphylos pajaroensis Pajaro Manzanita Arctostaphylos patula Green Manzanita Greenleaf Manzanita, Buckbrush Arctostaphylos pumila Sandmat Manzanita, Dune Manzanita Arctostaphylos pungens Ponitleaf Manzanita, Mexican Manzanita Arctostaphylos refugioensis Refugio Manzanita Arctostaphylos rudis Shag Bark Manzanita, Sand Mesa Manzanita Arctostaphylos tomentosa Wolly Manzanita, Woollyleaf Manzanita, Downy Manzanita Arctostaphylos uva Kinnikinnik Kinnikinick, Bearberry Arctostaphylos viridissima Arctostaphylos viridissima Arctostaphylos white Arctostaphylos white Asimina triloba Common Pawpaw Custard Apple Aucuba japonica Japanese Aucuba, Japanese Laurel Bambusa multiplex Alphonse Karr Betula alleghaniensis Yellow Birch Betula davurica Asian Black Birch, Dahurian Birch Betula glandulosa Dwarf Birch Bog Birch, Scrub Birch Betula lenta Sweet Birch, Cherry Birch, Black Birch Betula maximowicziana Monarch Birch Betula nana Dwarf Birch, Bog Birch Betula nigra River Birch, Black Birch Betula occidentalis Water Birch, Western Birch, Red Birch, River Birch, Black Birch Betula papyrifera Paper Birch Betula pendula European White Birch Betula platyphylla Asian White Birch, Manchurian Birch Betula populifolia Gray Birch, Fire Birch Betula pubescens Downy Birch, Moor Birch Betula utilis Himalayan Birch, Bhojpatra, Indian Paper Birch Betula utilis subsp. albosinensis Chinese Paper Birch, Chinese Red Birch Betula utilis subsp. jacquemontii Whitebarked Himalayan Birch Camellia japonica Japanese Camellia Camellia sasanqua Sasanqua Camellia Cornus capitata Evergreen Dogwood, Bentham's Cornel, Himalayan Strawberry Tree Cotoneaster apiculatus Cranberry Cotoneaster Cotoneaster bullatus Hollyberry Cotoneaster Cotoneaster congestus Pyrenees Cotoneaster Cotoneaster dammeri Bearberry Cotoneaster Cotoneaster divaricatus Spreading Cotoneaster Cotoneaster franchetii Franchet Cotoneaster Cotoneaster horizontalis Rockspray Cotoneaster Cotoneaster intergerrimus European Cotoneaster Cotoneaster lacteus Parney Cotoneaster Cotoneaster lucidus Hedge Cotoneaster Cotoneaster microphyllus Littleleaf Cotoneaster Cotoneaster multiflorus Many-flowered Cotoneaster Cotoneaster salicifolius Willowleaf Cotoneaster Cotoneaster simonsii Simons Cotoneaster Cotoneaster suecicus Cotoneaster suecicus Daphne burkwoodii Burkwood Daphne Daphne caucasica Caucasian Daphne Daphne cneorum Garland Daphne, Rock Daphne, Rose Daphne Daphne genkwa Lilac Daphne Daphne laureola Spurge Laurel Daphne lawrence Daphne, lawrence Daphne mezereum February Daphne, Mezereon Daphne odora Fragrant Daphne, Winter Daphne Eucalyptus cinerea Silver Dollar Eucalyptus, Silver Dollar Gum Argyle Apple Euonymus americanus American Euonymus, Hearts-a-Burstin', Strawberry Bush Euphorbia Wood Spurge Fagus grandifolia American Beech Fagus sylvatica European Beech Fagus sylvatica f. pendula Weeping European Beech Fragaria chiloensis Beach Strawberry Sand Strawberry, Chilean Strawberry Fraxinus americana White Ash, American Ash Fraxinus anomala Singleleaf Ash, Dwarf Ash Fraxinus excelsior Euopean Ash, Common Ash Fraxinus latifolia Oregon Ash Fraxinus ornus Flowering Ash Fraxinus oxycarpa Fraxinus oxycarpa Fraxinus pennsylvanica Green Ash Fraxinus quadrangulata Blue Ash Fraxinus sieboldiana Siebold Ash, Japanese Flowering Ash, Chinese Flowering Ash Fuchsia magellanica Magellan Fuchsia, Hardy Fuchsia Grevillea aquifolium Holly, Grevillea Hedera canariensis Canary Island Ivy, Canarian Ivy, Algerian Ivy Hedera helix English Ivy Helleborus Hellebore Hibiscus syriacus Rose, of Sharon Shrub, Althea Ilex aquifolium English Holly Ilex attenuata Ilex attenuata Ilex cornuta Chinese Holly, Horned Holly Ilex crenata Japanese Holly Ilex glabra Inkberry Inkberry Holly, Gallberry, Evergreen Winterberry Ilex latifolia Lusterleaf Holly Ilex meserveae Meserve Hybrid Holly Ilex paraguariensis Yerba Matá, Maté, Paraguay Tea Ilex verticillata Winterberrry Winterberry Holly, Michigan Holly, Christmas Berry Black Alder Juniperus californica California Juniper, California White Cedar, Desert White Cedar Juniperus cedrus Canary Island Juniper Juniperus chinensis Chinese Juniper Juniperus communis Common Juniper Juniperus conferta Juniperus conferta Juniperus deppeana Alligator Juniper, Checkered-bark Juniper Juniperus formosana Formosan Juniper Juniperus grey Juniperus grey Juniperus horizontalis Creeping Juniper Juniperus monosperma Oneseed Juniper Juniperus occidentalis Western Juniper Juniperus osteosperma Utah Juniper Juniperus pingii Ping Juniper Juniperus procumbens Japanese Garden Juniper, Bonin Island Juniper, Ibuki Juniper Juniperus rigida Temple Juniper, Needle Juniper Juniperus rigida subsp. conferta Shore Juniper Juniperus sabina Savin Juniper Juniperus scopulorum Rocky Mountain Juniper Juniperus squamata Singleseed Juniper, Flaky Juniper, gao shan bai Juniperus virginiana Eastern Redcedar Pencil Cedar Laburnum watereri Goldenchain Tree, Hybrid Goldenchain Tree Lonicera ciliosa Western Trumpet Honeysuckle, Orange Honeysuckle Lonicera fragrantissima Winter Honeysuckle, Sweet-Breath-of-Sping January Jasmine Lonicera hispidula Pink Honeysuckle Hairy Honeysuckle, California Honeysuckle Lonicera involucrata Twinberry, Black Twinberry, Inkberry Lonicera japonica Japanese Honeysuckle Lonicera maackii Amur Honeysuckle, Bush, Honeysuckle Lonicera nitida Box Honeysuckle Lonicera pileata Privet, Honeysuckle Lonicera tatarica Tatarian Honeysuckle, Tartarian Honeysuckle Magnolia liliiflora Lily, Magnolia Malus 'Indian Magic' Indian Magic Crabapple Malus atrosanguinea Carmine Crabapple Malus brandywine Brandywine Crabapple Malus floribunda Japanese Flowering Crabapple Malus fusca Pacific Crabapple Malus hupehensis Tea Crabapple Malus prairifire Prairifire Crabapple Malus pumila Apple Malus robusta Cherry, Crabapple Malus sargentii Sargent Crabapple, Pigmy Crabapple Malus snowdrift Snowdrift Crabapple Malus transitoria Transitoria Crabapple Microcachrys tetragona Creeping Pine, Creeping Strawberry Pine Nandina domestica Heavenly Bamboo Sacred Bamboo, Nandina Photinia ×fraseri Red Tip Photinia Photinia davidiana Chinese Stranvaesia Photinia davidiana var. undulata Wavy-leafed Chinese Stranvaesia Photinia glabra Japanese Photinia Photinia serratifolia Chinese Photinia Taiwanese Photinia Photinia villosa Oriental Photinia Platanus acerifolia London Planetree Platanus mexicana Mexican Sycamore Platanus occidentalis American Sycamore, American Planetree Buttonwood Platanus racemosa California Sycamore, Western Sycamore Populus alba White Poplar European White Poplar, Silver Poplar Populus angustifolia Narrowleaf Cottonwood, Mountain Cottonwood Populus balsamifera Balsam Poplar Populus canescens Gray Poplar Populus deltoides Eastern Cottonwood Populus fremontii Fremont Cottonwood, Western Cottonwood Populus grandidentata Bigtooth Aspen Populus nigra Black Poplar Populus tremula European Aspen European Trembling Aspen European Quaking Aspen Populus tremuloides Quaking Aspen Populus trichocarpa Black Cottonwood Prunus americana Wild Plum American (Red) Plum August Plum, Goose Plum Prunus armeniaca Apricot Prunus avium Sweet Cherry Prunus besseyi Sand Cherry, Western Sand Cherry Prunus blireiana Blireiana Plum Prunus caroliniana Carolina Cherrylaurel American Cherrylaurel Prunus cascade Prunus cascade Prunus cerasifera Cherry, Plum Prunus cistena Purpleleaf Sandcherry Redleaf Sandcherry Cistena Sandcherry Cistena Plum Prunus dream Prunus dream Prunus emarginata Bitter Cherry, Wild Cherry, Quinine Cherry Prunus first Prunus first Prunus fruticosa Steppe Cherry, European Dwarf Ground Cherry, Mongolian Cherry Prunus glandulosa Dwarf Flowering Almond Prunus ilicifolia Hollyleaf Cherry, Holly-leaved Cherry Prunus laurocerasus Cherry, Laurel Prunus lusitanica Portugal Laurel Prunus maackii Amur Chokecherry Amur Cherry, Manchurian Cherry Prunus mume Japanese Apricotc Japanese Flowering Apricot Japanese Flowering Plum Prunus newport Newport Flowering Plum Prunus okame Okame Flowering Cherry Prunus padus European Birdcherry Common Birdcherry Prunus prostrata Rock Cherry, Mountain Cherry Prunus sargentii Sargent Cherry, Sargent's Cherry Prunus serotina Black Cherry, Rum Cherry Prunus serrula Birchbark Cherry, Paperbark Cherry, Tibetan Cherry Prunus serrulata Japanese Flowering Cherry Prunus snow Prunus snow Prunus subcordata Klamath Plum, Sierra Plum, Pacific Plum Prunus subhirtella Higan Cherry Prunus subhirtella var. autumnalis Autumn Flowering Higan Cherry Prunus tai Prunus tai Prunus virginiana Prunus virginiana Prunus virginiana var. demissa Western Chokecherry Prunus virginiana var. virginiana Common Chokecherry, Eastern Chokecherry Prunus yedoensis Yoshino Cherry, Somei-yoshino Cherry, Tokyo Cherry Pseudotsuga macrocarpa Bigcone Douglas-fir Pseudotsuga menziesii Douglas-fir Pseudotsuga menziesii var. glauca Rocky Mountain Douglas-fir Blue Douglas-fir Inland Douglas-fir Colorado Douglas-fir Pseudotsuga wilsoniana Taiwan Douglas-fir Pyrus calleryana Callery Pear Pyrus communis Common Pear Pyrus fauriei Pyrus fauriei Pyrus salicifolia Pyrus salicifolia Quercus phellos Willow, Oak Rhamnus alnifolia Alder Buckthorn, Glossy Buckthorn, Breaking Buckthorn Rhododendron 'Purple Gem' Purple Gem Rhododendron Rhododendron airy Rhododendron, airy Rhododendron alabamense Alabama Azalea Rhododendron alice Alice Rhododendron Rhododendron anah Rhododendron, anah Rhododendron anna Rhododendron, anna Rhododendron april Rhododendron, april Rhododendron arboreum subsp. cinnamomeum Cinnamon Rhododendron Rhododendron argosy Argosy Rhododendron Rhododendron augustinii Augustine Rhododendron Rhododendron auriculatum No common name (R. auriculatum) Rhododendron beauty Rhododendron, beauty Rhododendron bibiani Bibiani Rhododendron Rhododendron blue Rhododendron, blue Rhododendron boule Rhododendron, boule Rhododendron bow Rhododendron, bow Rhododendron bric Rhododendron, bric Rhododendron bureavii Bureau Rhododendron Rhododendron campylocarpum subsp. coloxanthum Coloxanthum Rhododendron Rhododendron catawbiense Catawba Rhododendron Rhododendron cheer Cheer Rhododendron Rhododendron chevalier Rhododendron, chevalier Rhododendron christmas Rhododendron, christmas Rhododendron cinnabarinum Cinnabar Rhododendron Rhododendron concinnum Concinnum Rhododendron Rhododendron cotton Rhododendron, cotton Rhododendron crater Rhododendron, crater Rhododendron crest Crest Rhododendron Rhododendron cunninghams Rhododendron, cunninghams Rhododendron cynthia Cynthia Rhododendron Rhododendron daphnoides Daphnoides Rhododendron Rhododendron dauricum Dauricum Rhododendron Rhododendron davidsonianum Davidsonianum Rhododendron Rhododendron day Rhododendron, day Rhododendron deciduous Rhododendron, deciduous Rhododendron defines Rhododendron, defines Rhododendron delaware Rhododendron, delaware Rhododendron dora Rhododendron, dora Rhododendron dreamland Dreamland Rhrododendron Rhododendron el Rhododendron, el Rhododendron elisabeth Rhododendron, elisabeth Rhododendron elizabeth Elizabeth Rhododendron Rhododendron falconeri subsp. falconeri Falconer Rhododendron Rhododendron fantastic Fantastic Rhododendron Rhododendron formosum var. formosum Formosum Rhododendron Rhododendron forrestii subsp. forrestii Forrest Rhododendron Rhododendron fortunei subsp. discolor Fortune Discolor, Discolor Rhododendron Rhododendron frilly Rhododendron, frilly Rhododendron gartendirektor Rhododendron, gartendirektor Rhododendron girards Rhododendron, girards Rhododendron goldflimmer Goldflimmer Rhododendron Rhododendron grace Rhododendron, grace Rhododendron groenlandicum Labrador-tea, Labrador Tea Rhododendron haematodes subsp. haematodes Haematodes Rhododendron Rhododendron hallelujha Hallelujah Rhododendron Rhododendron hanceanum Hanceanum Rhododendron Rhododendron hardijzer Rhododendron, hardijzer Rhododendron harry Rhododendron, harry Rhododendron hino Rhododendron, hino Rhododendron hinode Rhododendron, hinode Rhododendron hippophaeoides var. hippophaeoides Hippophaeoides Rhododendron Rhododendron hodgsonii Hodgson Rhododendron Rhododendron honourable Rhododendron, honourable Rhododendron horizon Rhododendron, horizon Rhododendron hotei Hotei Rhododendron Rhododendron irroratum Irroratum Rhododendron Rhododendron jock Jock Rhododendron Rhododendron johnstoneanum Rhododendron, johnstoneanum Rhododendron keiskei Keiskei Rhododendron, Keisuki Rhododendron Rhododendron ken Rhododendron, ken Rhododendron kiusianum Kiusianum Azalea, Kyushu Azalea Rhododendron lacteum Lacteum Rhododendron Rhododendron lees Rhododendron, lees Rhododendron lems Rhododendron, lems Rhododendron lights Rhododendron, lights Rhododendron loderi Rhododendron, loderi Rhododendron luteiflorum Luteiflorum Rhododendron Rhododendron lutescens Lutescens Rhododendron Rhododendron luteum Pontic or Pontica Azalea Rhododendron macabeanum Macabeanum Rhododendron Rhododendron macrophyllum Pacific Rhododendron Rhododendron moonstone Moonstone Rhododendron Rhododendron mrs Rhododendron, mrs Rhododendron mucronulatum Rhododendron, mucronulatum Rhododendron myrtifolium Myrtifolium Rhododendron Rhododendron niveum Niveum Rhododendron Rhododendron northern Rhododendron, northern Rhododendron occidentale Western Azalea Rhododendron orbiculare subsp. orbiculare Obiculare Rhododendron Rhododendron orchid Rhododendron, orchid Rhododendron oreotrephes Oreotrephes Rhododendron Rhododendron oudijks Rhododendron, oudijks Rhododendron pachytrichum Pachytrichum Rhododendron Rhododendron peekaboo Peekaboo Rhododendron Rhododendron pink Rhododendron, pink Rhododendron pioneer Rhododendron, pioneer Rhododendron pjm P.J.M. Rhododendron Rhododendron point Rhododendron, point Rhododendron ponticum Rhododendron, ponticum Rhododendron president Rhododendron, president Rhododendron prinophyllum Roseshell Azalea, Pinkshell Azalea Rhododendron prunifolium Plumleaf Azalea Rhododendron quinquefolium Quinquefolium Azalea Rhododendron racemosum Racemosum Rhododendron Rhododendron ramapo Ramapo Rhododendron Rhododendron rosamundi Rosamundi Rhododendron Rhododendron roseum Rhododendron, roseum Rhododendron rosy Rhododendron, rosy Rhododendron roxieanum var. oreonasters No common name Rhododendron rubiginosum Rubiginosum Rhododendron Rhododendron sappho Sappho Rhododendron Rhododendron scarlet Rhododendron, scarlet Rhododendron schlippenbachii Royal Azalea Rhododendron serpyllifolium Wild Thyme, Azalea Rhododendron serpyllifolium var. albifolrum White Wild Thyme, Azalea Rhododendron sinofalconeri Sinofalconer Rhododendron Rhododendron sinogrande Sinogrande Rhododendron Rhododendron smirnowii Smirnow Rhododendron Rhododendron snow Rhododendron, snow Rhododendron stenopetalum Rhododendron, stenopetalum Rhododendron taurus Taurus Rhododendron Rhododendron temple Rhododendron, temple Rhododendron thomsonii subsp. thomsonii Thomson Rhododendron Rhododendron tri Rhododendron, tri Rhododendron trilby Trilby Rhododendron Rhododendron unique Unique Rhododendron Rhododendron vulcan Vulcan Rhododendron Rhododendron wardii Ward Rhododendron Rhododendron white Rhododendron, white Rhododendron wiltonii Wilton Rhododendron Rhododendron winsome Winsome Rhododendron Rhododendron yakushimanum Yak Rhododendron Robinia neomexicana New Mexican Locust, Southwest Locust, Desert Locust Robinia pseudoacacia Black Locust Rosa acicularis Wild Prickly Rose Rosa gymnocarpa Little Wood Rose, Wood Rose, Baldhip Rose Rosa multiflora Multiflora Rose Rosa nutkana Nootka Rose Rosa pisocarpa Clustered Rose, Swap Rose Rosa rubiginosa Sweetbriar Rose, Eglantine Rose Rosa rugosa Rugosa Rose, Beach Tomato, Sea Tomato Rosa woodsii Woods' Rose Rubus calycinoides Crinkle-leaf Creeper Creeping Raspberry Yü-shan raspberry Rubus leucodermis Blackcap, Western Raspberry Rubus odoratus Flowering Raspberry Purple-flowering Raspberry Rubus tricolor Creeping Bramble Korean Raspberry Salix alba Salix alba Salix babylonica Weeping Willow Salix caprea Salix caprea Salix integra Salix integra Salix magnifica Magnolia-leaf Willow, Magnificent Willow Salix matsudana Salix matsudana Salix pentandra Laurel, Willow, Bay Willow Salix phlebophylla Skeletonleaf Willow Salix purpurea Purpleosier Alaska Blue Willow Salix scouleriana Scouler's Willow Sambucus nigra subsp. cerulea Blue Elderberry, Blueberry, Elder Sorbus alnifolia Korean Mountain Ash, Alder, Mountain Ash Sorbus aria Whitebeam Mountain Ash Sorbus aucuparia European Mountain Ash Sorbus koehneana Chinese Mountain Ash, White-fruited Chinese Mountain Ash Sorbus poteriifolia Mountain Ash Sorbus scopulina Greene Mountain Ash, Western Mountain Ash Sorbus sitchensis Sitka Mountain Ash, Pacific Mountain Ash, Western Mountain Ash Sorbus yunan Sorbus yunan (no English common name) Spiraea betulifolia Birch-leaf Spirea, Shiny-leaf Spirea, White Spirea Spiraea densiflora Rose, Meadowsweet, Mountain Spirea, Subalpine Spirea Spiraea double Spiraea, double Spiraea douglasii Rose, Spirea Spiraea fritschiana Korean Spirea Spiraea japonica Japanese Spirea Spiraea japonica var. alpina Daphne, Spirea Spiraea miyabei Miyabe Spirea Spiraea nipponica Nippon Spirea Spiraea prunifolia Spiraea, prunifolia Spiraea splendens Mountain Spirea, Rose Meadowsweet, Subalpine Spirea Spiraea thunbergii Thunberg Spirea Spiraea vanhouttei Van Houtte Spirea, Bridal Wreath Spirea Tilia americana American Linden, American Basswood Tilia cordata Littleleaf Linden Tilia euchlora Crimean Linden Tilia europaea European Linden, Common Linden Common Lime European Basswood Tilia mongolica Mongolian Linden, Mongolian Basswood Tilia tomentosa Silver Linden, Silver Basswood Ulmus americana American Elm Ulmus davidiana David Elm Ulmus davidiana var. davidiana unknown Ulmus davidiana var. japonica Japanese Elm Ulmus glabra Ulmus glabra Ulmus hollandica Dutch Elm, Holland Elm, Hybrid Elm Ulmus parvifolia Lacebark Elm, Chinese Elm Ulmus pumila Siberian Elm Vaccinium angustifolium Lowbush Blueberry Vaccinium corymbosum Highbush Blueberry Vaccinium crassifolium Creeping Blueberry, Thick-leaved Whortlberry Vaccinium moupinense Himalayan Blueberry Vaccinium ovalifolium Oval-leaf Blueberry Vaccinium sikkimense Sikkim Blueberry Viburnum dilatatum Linden, Viburnum, Linden, Arrowwood Waldsteinia fragarioides Barren Strawberry