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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
Acer macrophyllum (Big leaf maple) More Info
Acer negundo (Box elder, Ash leaf maple) More Info
Acer platanoides (Norway maple) More Info
Acer rubrum (Red maple) More Info
Acer saccharinum (Silver maple) More Info
Acer saccharum (Sugar maple) More Info
Aconitum napellus (Monk's hood) More Info
Actaea alba (Baneberry, Doll's-eyes, Necklace weed) More Info
Agave americana (Century plant, Sisal) More Info
Aglaonema (Chinese evergreen) More Info
Agropyron cristatum (Crested wheatgrass) More Info
Agropyron desertorum (Clustered wheatgrass) More Info
Agrostis capillaris (Colonial bentgrass) More Info
Agrostis gigantea (Black bentgrass) More Info
Agrostis stolonifera (Redtop, creeping bentgrass) More Info
Ailanthus altissima (Tree-of-heaven) 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
Alstroemeria ligtu (Inca lily, Parrot flower) More Info
Amaranthus (Pigweeds, tumbleweeds, waterhemp) More Info
Amaranthus albus (Tumbleweed) More Info
Amaranthus blitoides (Mat 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 spinosus (Pigweed, Spiny amaranth) More Info
Amaranthus tuberculatus (Western waterhemp, Rough fruit 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 trifida (Giant ragweed) More Info
Amorphophallus (Voodoo lilies, snake lilies) 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
Aralia spinosa (Devil's walking stick, Prickly ash, Hercules' club) More Info
Arisaema dracontium (Green dragon) More Info
Arisaema triphyllum (Jack-in-the-pulpit) More Info
Arrhenatherum elatius (Tall oatgrass) More Info
Artemisia absinthium (Wormwood (absinthe), Oldman) More Info
Artemisia annua (Annual wormwood) 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
Asimina triloba (Pawpaw) 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
Bassia scoparia (Burning bush, firebush) More Info
Begonia spp, (Begonias) More Info
Beta vulgaris (Sugar beet, Sea beet) More Info
Betula nigra (River birch, Red 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
Buxus sempervirens (Boxwood) More Info
Caladium bicolor (Caladium) More Info
Campsis radicans (Trumpet vine) More Info
Cannabis sativa (Western water hemp) More Info
Capsicum (Red peppers, Chili peppers, Hot peppers) More Info
Carex (Sedges) More Info
Carya alba (Mockernut hickory,white hickory) More Info
Carya aquatica (Water hickory) More Info
Carya glabra (Pignut hickory) More Info
Carya illinoinensis (Pecan) More Info
Carya laciniosa (Shell bark hickory) More Info
Carya ovata (Shag bark hickory) More Info
Carya texana (Black hickory) More Info
Catalpa bignonioides (Bean tree, Southern catalpa, Candle tree) More Info
Caulophyllum thalictroides (Blue cohosh, Papooseroot) More Info
Celtis (Hackberry, sugarberry) 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
Chamaecyparis thyoides (Atlantic white cedar) 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
Cichorium intybus (Chicory) More Info
Cinnamomum camphora (Camphor tree) More Info
Citrus (Citrus trees (orange, lemon, lime, grapefruit, etc.)) More Info
Clematis spp. and hybrids (Virgin's bower) More Info
Cleome spinosa (Spider flower) More Info
Codiaeum variegatum (Croton) More Info
Corylus americana (American hazelnut) More Info
Cosmos bipinnatus (Garden cosmos) More Info
Cymbidium (Cymbidium orchids) More Info
Cynodon dactylon (Bermudagrass) More Info
Cyperus (Sedges, papyrus) More Info
Cyperus esculentus (Yellow nut sedge, chufa) More Info
Cypripedium (Lady slipper orchids, Moccasin flower) More Info
Dactylis glomerata (Orchardgrass) More Info
Daphne (Daphne) More Info
Datura metel (Thorn apple, Datura) More Info
Datura stramonium (Jimson weed, Thorn apple, Datura) More Info
Daucus carota (Wild carrot, Queen Anne's lace) More Info
Delphinium (Larkspur, Staggerweed) More Info
Dianthus caryophyllus (Carnation) More Info
Dicentra (Bleeding heart) More Info
Dictamnus albus (Gas plant, Dittany, Burning bush) More Info
Dieffenbachia spp. and hybrids (Dumb-cane) More Info
Digitaria (Crabgrass) More Info
Dirca palustris (Leather bark, Wicopy, Swamp wood) 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
Fagopyrum esculentum (Buckwheat) 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 americana (White ash) More Info
Fraxinus pennsylvanica (Green ash, Red ash) More Info
Gaillardia pulchella (Blanket flower ) More Info
Ginkgo biloba (Maidenhair tree) More Info
Gypsophila paniculata (Baby's breath) More Info
Hedera canariensis (Algerian ivy) More Info
Hedera helix (English ivy) More Info
Helenium amarum (Sneezeweed) 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
Holcus lanatus (Common velvetgrass) More Info
Hordeum vulgare (Common Barley) More Info
Humulus lupulus (Common Hop) More Info
Hyacinthus orientalis (Hyacinth) More Info
Hydrangea macrophylla (Hydrangea) More Info
Hymenocallis (Spider lilies.) More Info
Hypericum perforatum (St. John's wort, Klamath weed) 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 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
Lactuca sativa (Lettuce) More Info
Lactuca scariola (Prickly lettuce) More Info
Lantana camara (Lantana, Wild sage) More Info
Laportea canadensis (Stinging nettle, Canadian wood nettle) 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
Maclura pomifera (Osage orange) More Info
Magnolia grandiflora (Southern magnolia.) More Info
Medicago sativa (Alfalfa, lucerne) More Info
Melilotus officinalis (Yellow sweet clover) More Info
Mentha (Mint, Peppermint, Spearmint, Pennyroyal, Horsemint) More Info
Monstera deliciosa (Ceriman) More Info
Myrica cerifera (Wax Myrtle, Southern Bayberry) More Info
Narcissus (Daffodils, Jonquils, Narcissus) More Info
Nerium oleander (Oleander) 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
Paphiopedilum haynaldianum (Lady slipper orchid) More Info
Parthenocissus quinquefolia (Virginia creeper) 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
Picea abies (Norway spruce) More Info
Pinus echinata (Short-leaf pine) More Info
Pinus edulis (Two needle pinyon) More Info
Pistia stratiotes (Water lettuce) 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 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
Pteridum aquilinum (Bracken fern) More Info
Pyrus communis (Common Pear) More Info
Quercus (Oaks) More Info
Quercus alba (Northern white oak) More Info
Quercus falcata (Southern red oak) More Info
Quercus macrocarpa (Burr oak) More Info
Quercus rubra (Northern red oak) More Info
Quercus stellata (Post oak) More Info
Quercus velutina (Black 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
Rudbeckia hirta (Black-eyed susan) 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
Sanguinaria canadensis (Bloodroot) More Info
Sassafras albidum (Sassafras) More Info
Schefflera actinophylla (Umbrella tree) More Info
Scirpus (Bulrushes) More Info
Secale cereale (Cultivated Rye) More Info
Senecio (Groundsels) More Info
Senecio glabellus (Butterweed) More Info
Solidago (Goldenrods) More Info
Solidago canadensis (Canadian goldenrod) More Info
Solidago gigantea (Late goldenrod) More Info
Sorghastrum nutans (Yellow Indian grass) 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
Suaeda moquinii (Seablite, alkall) More Info
Syngonium podophyllum (Nephthytis) More Info
Tagetes patula (French marigold) More Info
Tanecetum vulgare (Common Tansy) More Info
Taraxacum officinale (Common Dandelion) More Info
Taxodium distichum (Southern bald cypress) More Info
Thymus vulgaris (Thyme) More Info
Toxicodendron radicans (Poison ivy) 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
Tulipa (Tulips) 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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