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The following is a collective list of Allergenic plants, by zone, with supporting information. Click on the map above or on a link below to view plants specific to that zone.

Plant Name  
Abelmoschus esculentus (Okra) More Info
Acacia longifolia (Acacia, Sydney golden wattle) More Info
Acer negundo (Box elder, Ash leaf maple) More Info
Aglaonema (Chinese evergreen) More Info
Agrostis capillaris (Colonial bentgrass) More Info
Albizia lebbek (Woman's tongue) More Info
Alcea rosea (Hollyhock) More Info
Allium (Onion, garlic, leek, shallot) More Info
Alnus incana (Speckled alder) More Info
Alnus serrulata (Brookside alder, Hazel alder) More Info
Alnus viridis (Sitka or Mountain alder) More Info
Alopecurus pratensis (Field meadow foxtail) More Info
Amaranthus (Pigweeds, tumbleweeds, waterhemp) More Info
Amaranthus albus (Tumbleweed) More Info
Amaranthus blitoides (Mat amaranth) More Info
Amaranthus hybridus (Careless weed, Smooth amaranth) More Info
Amaranthus palmeri (Palmer's amaranth) More Info
Amaranthus retroflexus (Pigweed, Redroot/Rough amaranth) More Info
Amaranthus rudis (Tall amaranth, western waterhemp) More Info
Amaranthus tuberculatus (Western waterhemp, Rough fruit amaranth) More Info
Amaranthus viridis (Slender amaranth) More Info
Ambrosia artemisiifolia (Annual ragweed,common ragweed, short ragweed) More Info
Ambrosia bidentata (Lance-leaf ragweed, Southern ragweed) More Info
Ambrosia psilostachya (Perennial ragweed, Western ragweed ) More Info
Ambrosia tomentosa (Bursage, Skeleton leaf burr ragweed) More Info
Ambrosia trifida (Giant ragweed) More Info
Amphiachyris dracunculoides (Broomweed) More Info
Andropogon virginicus (Virginia beardgrass, Broom sedge) More Info
Anthoxanthum odoratum (Large sweet vernalgrass) More Info
Anthurium (Flamingo flower, anthurium) More Info
Arrhenatherum elatius (Tall oatgrass) More Info
Artemisia absinthium (Wormwood (absinthe), Oldman) More Info
Artemisia campestris (Sagewort, wormwood) More Info
Artemisia dracunculus (Green sage, Dragon wormwood, ) More Info
Artemisia frigida (Pasture sage, Prairie sagebrush) More Info
Artemisia ludoviciana (White sage) More Info
Artemisia tridentata (Big sagebrush, Giant sagebrush, Common sagebrush) More Info
Artemisia vulgaris (Mugwort, Common Wormwood) More Info
Asclepias curassavica (Milkweed) More Info
Atriplex canescens (Wingscale, Four wing saltbush) More Info
Atriplex confertifolia (Shadscale) More Info
Atriplex patula (Halberd leaf orache, Common Orache) More Info
Atriplex rosea (Red scale, Tumbling orache) More Info
Avena fatua (Wild oat, Common Oat ) More Info
Avena sativa (Cultivated oat) More Info
Baccharis halimifolia (Consumption weed, Sea-myrtle, Groundseltree) More Info
Balsamorhiza sagittata (Arrow leaf balsamroot) More Info
Bassia scoparia (Burning bush, firebush) More Info
Begonia spp, (Begonias) More Info
Beta vulgaris (Sugar beet, Sea beet) More Info
Betula occidentalis (Water birch) More Info
Boehmeria cylindrica (Boghemp, Small-spike false nettle) More Info
Bouteloua gracilis (Blue grama) More Info
Brassica (Mustard, Cabbage (inc. brocolli, Brussels sprouts, cauliflower), Rape) More Info
Brassica campestris (rapa) (Mustard) More Info
Bromus (Brome grasses) More Info
Bromus inermis (Smooth brome) More Info
Bromus secalinus (Rye brome, Cheat brome) More Info
Broussonetia papyrifera (Paper mulberry) More Info
Buchloe dactyloides (Buffalograss) More Info
Caladium bicolor (Caladium) More Info
Campanula (Canterbury bells, campanula, bluebells, harebells) More Info
Cannabis sativa (Western water hemp) More Info
Capsicum (Red peppers, Chili peppers, Hot peppers) More Info
Carex (Sedges) More Info
Carya aquatica (Water hickory) More Info
Carya glabra (Pignut hickory) More Info
Carya laciniosa (Shell bark hickory) More Info
Carya texana (Black hickory) More Info
Celtis laevigata (Sugarberry, Hackberry) More Info
Celtis occidentalis (Common Hackberry) More Info
Centaurea maculosa (Knapweed) More Info
Chamaecyparis lawsoniana (Port Orford cedar, Lawson's cypress) More Info
Chamaedorea (Parlor palm, Bamboo palm, Reed palm) More Info
Chamaenerion angustifolium (Fireweed) More Info
Chenopodium album (Lamb's quarters) More Info
Chenopodium ambrosioides (Mexican tea) More Info
Chenopodium berlandieri (Pit seed goosefoot) More Info
Chenopodium botrys (Jerusalem oak) More Info
Chrysanthemum (Chrysanthemum, Crown daisy, Corn marigold) More Info
Chrysanthemum leucanthemum (Daisy, Ox-Eye) More Info
Chrysanthemum x morifolium (Florist's chrysanthemum) More Info
Chrysothamnus viscidiflorus (Douglas rabbitbush, Green rabbitbrush) More Info
Cichorium intybus (Chicory) More Info
Clematis spp. and hybrids (Virgin's bower) More Info
Cleome spinosa (Spider flower) More Info
Codiaeum variegatum (Croton) More Info
Cymbidium (Cymbidium orchids) More Info
Cyperus (Sedges, papyrus) More Info
Cyperus esculentus (Yellow nut sedge, chufa) More Info
Daucus carota (Wild carrot, Queen Anne's lace) More Info
Dianthus caryophyllus (Carnation) More Info
Dictamnus albus (Gas plant, Dittany, Burning bush) More Info
Dieffenbachia spp. and hybrids (Dumb-cane) More Info
Digitaria (Crabgrass) More Info
Distichlis spicata (Coastal saltgrass) More Info
Elaeagnus angustifolia (Russian olive) More Info
Elymus repens (Quack grass, Couch grass) More Info
Epipremnum aureum (Pothos) More Info
Euphorbia (Spurges, Milk cacti) More Info
Euphorbia fulgens (Scarlet plume) More Info
Euphorbia pulcherrima (Poinsettia) More Info
Festuca elatior (Meadow Fescue) More Info
Festuca rubra (Red fescue) More Info
Ficus benjamina (Weeping banyan, Weeping fig) More Info
Foeniculum vulgare (Fennel) More Info
Fraxinus pennsylvanica (Green ash, Red ash) More Info
Gaillardia pulchella (Blanket flower ) More Info
Gelsemium sempervirens (Carolina jessamine, yellow jessamine) More Info
Gypsophila paniculata (Baby's breath) More Info
Helenium autumnale (Sneezeweed) More Info
Helianthus annuus (Common Sunflower) More Info
Hibiscus (Mallow, Rose mallow) More Info
Hippeastrum spp. and hybrids (Amaryllis) More Info
Hordeum vulgare (Common Barley) More Info
Humulus lupulus (Common Hop) More Info
Hyacinthus orientalis (Hyacinth) More Info
Hydrangea macrophylla (Hydrangea) More Info
Iris (Flag, Iris) More Info
Iva angustifolia (Narrow-leaf marsh elder) More Info
Iva annua (Rough marsh elder, Annual marsh elder) More Info
Iva axillaris (Poverty Weed, Deer root) More Info
Iva frutescens (Marsh elder, Coast elder, Jesuit's bark) More Info
Iva xanthifolia (Prairie ragweed) More Info
Juglans microcarpa (Arizona walnut) More Info
Juniperus (Junipers, Red cedars) More Info
Juniperus ashei (Mountain cedar, Ashe's juniper) More Info
Juniperus chinensis (Pfitzer (Juniper, Chinese)) More Info
Juniperus communis (Common Juniper) More Info
Juniperus virginiana (Eastern red cedar) More Info
Koeleria macrantha (Hairgrass) More Info
Krasheninnikovia lanata (Winterfat) More Info
Lactuca sativa (Lettuce) More Info
Lactuca scariola (Prickly lettuce) More Info
Leymus cinereus (Giant wild ryegrass, ) More Info
Lobelia (Cardinal flower, Indian pink, lobelia) More Info
Lolium perenne (Perennial ryegrass) More Info
Lolium pratense (Meadow grass) More Info
Lycopodium clavatum (Running club moss) More Info
Medicago sativa (Alfalfa, lucerne) More Info
Melilotus officinalis (Yellow sweet clover) More Info
Monstera deliciosa (Ceriman) More Info
Narcissus (Daffodils, Jonquils, Narcissus) More Info
Nicotiana (Tobacco) More Info
Opuntia (Beavertail cactus, Tuna, Cholla, Prickly pear cactus) More Info
Ornithogalum (Chincherinchee, Star of Bethlehem) More Info
Ostrya virginiana (Hop hornbeam) More Info
Papaver (Poppies) More Info
Pascopyrum smithii (Western wheatgrass) More Info
Paspalum notatum (Bahiagrass) More Info
Pastinaca sativum (Wild parsnip) More Info
Pelargonium (Geraniums) More Info
Petroselinum crispum (Parsley) More Info
Phalaris arundinacea (Reed Canarygrass ) More Info
Phalaris canariensis (Common Canarygrass) More Info
Philodendron (Philodendron) More Info
Philodendron scandens (Heartleaf philodendron) More Info
Phleum pratense (Common Timothy) More Info
Phragmites australis (Common Reed) More Info
Pinus echinata (Short-leaf pine) More Info
Pinus ponderosa (Ponderosa pine) More Info
Pithecellobium dulce (Guaymochil, Monkey pod) More Info
Plantago lanceolata (English plantain) More Info
Plantago major (Common plantain) More Info
Plantago rugelii (Black-seed plantain) More Info
Platanus occidentalis (American sycamore, Eastern sycamore) More Info
Poa compressa (Flat-stem bluegrass) More Info
Poa pratensis (Kentucky bluegrass, June grass) More Info
Poa secunda (Sandberg's bluegrass) More Info
Polygonum (Knotweeds, Smartweeds) More Info
Polyscias (Ming aralias) More Info
Populus (Poplars, Cottonwoods, Aspen) More Info
Populus alba (White poplar) More Info
Populus balsamifera (Balsam poplar) More Info
Populus deltoides (Eastern cottonwood) More Info
Populus nigra 'Italica' (Lombardy poplar, Black poplar) More Info
Populus sargentii (Cottonwood, Western) More Info
Populus tremuloides (Quaking aspen) More Info
Primula malacoides (Fairy primrose) More Info
Primula obconica (Primrose) More Info
Prosopis glandulosa (Honey mesquite) More Info
Prunus armeniaca (Apricot) More Info
Prunus domestica (Plum (prune), European plum) More Info
Pseudoroegneria spicata (Bluebunch wheatgrass) More Info
Pteridum aquilinum (Bracken fern) More Info
Pyrus communis (Common Pear) More Info
Quercus falcata (Southern red oak) More Info
Quercus macrocarpa (Burr oak) More Info
Quercus stellata (Post oak) More Info
Quercus virginiana (Live oak) More Info
Ranunculus (Buttercups, Crowfoots) More Info
Raphanus sativus (Radish) More Info
Rhoeo spathacea (Oyster plant, Moses-in-a-cradle) More Info
Rhus (Sumacs) More Info
Rosa (Rose) More Info
Rosmarinus officinalis (Rosemary) More Info
Rumex acetosella (Red sorrel, Common Sheep sorrel) More Info
Rumex crispus (Curly dock) More Info
Rumex obtusifolius (Bitter dock) More Info
Salix (Willows) More Info
Salix discolor (Pussy willow) More Info
Salix lucida (Yellow willow) More Info
Salix nigra (Black willow) More Info
Sambucus nigra (Elderberry) More Info
Schefflera actinophylla (Umbrella tree) More Info
Scirpus (Bulrushes) More Info
Secale cereale (Cultivated Rye) More Info
Senecio glabellus (Butterweed) More Info
Shepherdia argentea (Silver buffalo berry) More Info
Solidago canadensis (Canadian goldenrod) More Info
Solidago gigantea (Late goldenrod) More Info
Solidago multiradiata (Goldenrod) More Info
Sorghum bicolor (Sorghum, Sudan grass (subsp, drummondii]) More Info
Sorghum halepense (Johnsongrass) More Info
Spinacia oleracea (Spinach) More Info
Sporobolus cryptandrus (Sand dropseed) More Info
Stillingia sylvatica (Queen's delight) More Info
Streptocarpus (Cape primroses) More Info
Syngonium podophyllum (Nephthytis) More Info
Tagetes patula (French marigold) More Info
Tamarix gallica (Salt cedar, French tamarisk) More Info
Taraxacum officinale (Common Dandelion) More Info
Taxodium distichum (Southern bald cypress) More Info
Thuja occidentalis (White cedar, Eastern arborvitae) More Info
Thymus vulgaris (Thyme) More Info
Tradecantia pallida (Purple queen, Purple heart) More Info
Trifolium pratense (Red clover) More Info
Trifolium repens (White clover) More Info
Triticum aestivum (Cultivated bread wheat) More Info
Tropaeolum majus (Nasturtium) More Info
Ulmus alata (Winged elm) More Info
Ulmus americana (American elm, White elm) More Info
Ulmus crassifolia (Cedar elm) More Info
Ulmus parvifolia (Chinese elm) More Info
Ulmus pumila (Siberian elm) More Info
Urochloa mutica (Para) More Info
Urtica dioica (Stinging nettle) More Info
Vinca (Periwinkle) More Info
Xanthium strumarium (Cockleburs) More Info
Zantedeschia (Calla lilies) More Info
Zea mays (Corn, Maize) More Info
 

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