Plants Toxic to Dogs

Botanical name Symptoms Common name
Abrus precatorius Severe vomiting and diarrhea (sometimes bloody), tremors, high heart rate, fever, shock, and death. Seeds are highly toxic. Buddhist Rosary Bead, Indian Bead, Indian Licorice, Love Bean, Lucky Bean, Prayer Bean, Precatory Bean, Rosary Pea, Seminole Bead, Weather Plant
Achillea millefolium Vomiting, diarrhea, increased urination, dermatitis Dog Daisy, Dog Fennel, Milfoil, Yarrow
Adenium obesum Vomiting, diarrhea, anorexia, depression, irregular hearthbeat, death Desert Azalea, Desert Rose, Impala Lily, Kudu Lily, Mock Azalea, Sabi Star
Aesculus glabra, spp. Severe vomiting and diarrhea, depression or excitement, dilated pupils, convulstions, incoordination, coma Buckeye, Horse Chestnut
Aglaonema modestrum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Chinese Evergreen
Allium ampeloprasum Vomiting, anemia, weakness, blood in urine, high heart rate, panting Leek
Allium cepa Vomiting, anemia, weakness, blood in urine, high heart rate, panting Onion
Allium sativum Vomiting, anemia, weakness, blood in urine, high heart rate, panting Garlic
Alocassia spp. Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Elephant’s Ear
Aloe barbadensis Vomiting, red urine Barbados Aloe, Medecine Plant, True Aloe
Aloe vera Vomiting, depression, diarrhea, anorexia, tremors, change in urine colour Aloe
Amaryllis belladonna, sp. Vomiting, depression, diarrhea, abdominal pains, hypersalivation, anorexia, tremors Amaryllis, Belladonna Lily, Cape Belladonna, Naked Lady, Saint Joseph Lily
Ambrosia mexicana Vomiting, anorexia, depression Chonopodium botrys, Feather Geranium, Jerusalem Oak
Ammi majus Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Bishop’s Weed, False Queen Anne’s Lace, Greater Ammi
Anthemis cotula Contact dermititis, vomiting, diarrhea, anorexia. Long term exposure can lead to bleeding tendencies. Mayweed, Poison Daisy, Stinking Chamomile
Anthemis nobilis Contact dermititis, vomiting, diarrhea, anorexia. Long term exposure can lead to bleeding tendencies. Barnyard daisy, Chamomile, Corn Feverfew, Garden Chamomile, Ground-Apple, Manzanilla, Roman Chamomile, True Chamomile, Turkey-weed
Anthurium scherzeranum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Flamingo Flower, Flamingo Lily, Oilcloth Flower, Painter’s Pallet, Pigtail Plant
Apocynum androsaemifolium Diarrhea (sometimes bloody), slow heart rate, weakness. Bitter Root, Dogbane Hemp, Indian Hemp
Aralia spinosa Skin irritation, Oral irritation, hypersalivation, vomiting, diarrhea Angelica Tree, Devil’s Walking Stick, Hercules’ Club, Prickly Ash, Prickly Elder
Arisaema triphyllum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Bog Onion, Brown Dragon, Devil’s Dear, Dragon Root, Jack-in-the-pulpit, Memory Root, Pepper Turnip, Starch Root, Three-leaved Indian Turnip, Wild Turnip
Arum maculatum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Adam-and-Eve, Arum, Bobbins, Cuckoo Plant, Lord-and-Ladies, Starch Root, Wake Robin
Arum palestinum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Black Calla, Soloman’s Lily, Wild Arum, Wild Calla
Asclepsia sp. Vomiting, diarrhea, anorexia, weakness, profound depression, difficulty breathing, dilated pupils, weak rapid pulse, seizures, kidney or liver failure, respitory paralysis, coma, death Butterfly Weed, Milkweed
Asparagus densiflorus cv sprengeri Allergic dermititis with repeated exposure. Diarrhea, vomiting, abdominal pain (berries). Asparagus setaceus, Emerald Feather, Emerald Fern, Lace Fern, Plumosa Fern, Racemose Asparagus, Shatavari, Sprengeri Fern
Auraucaria heterophylla Vomiting, depression Australian Pine, House Pine, Norfolk Pine
Begonia spp. Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing. Tubers are the most toxic. Begonia
Brassaia actinophylla Mild vomiting and diarrhea Australian Ivy Palm, Octopus Tree, Schefflera, Starleaf, Umbrella Tree
Brunfelsia sp. Vomiting, diarrhea, tremors, seizures, hypersalivation, lethargy, incoordination, coughing Brunfelsia, Fransiscan Rain Tree, Kiss-Me-Quick, Lady-of-the-Night, Paraguayan Jasmine, Yesterday-Today-Tomorrow
Buxus sp. Vomiting, diarrhea Boxwood
Caesalpinia pulcherrima Vomiting, diarrhea Barbados Pride, Dwarf Poinciana, Peacock Flower
Caladium hortulanum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Angel-Wings, Caladium, Candidum, Elephant’s Ear, Exposition, Fancy-leaved Caladium, Malanga, Mother-in-Law Plant, Pink Cloud, Seagull, Stoplight, Taro, Texas Wonder
Cannabis sativa Vomiting, prolonged depression, incoordination, hypersalivation, sleepyness or excitation, dilated pupils, low blood pressure, low body temperature, seizures, coma, and death (rare). Hashish, Indian Hemp, Marijuana
Catharanthus roseus Vomiting, diarrhea, low blood pressure, depression, tremors, seizures, coma, death Cape Periwinkle, Madagascar Periwinkle, Periwinkle, Rose Periwinkle, Running Myrthle, Vinca, Vinca rosea
Celastrus scandens Weakness, convulsions, vomiting, diarrhea American Bittersweet, Climbing Bittersweet, False Bittersweet, Shrubby Bittersweet, Waxwork
Chenopodium botrys Vomiting, anorexia, depression Ambrosia mexicana, Feather Geranium, Jerusalem Oak
Chrysanthemum sp. Vomiting, diarrhea, hypersalivation, incoordination, dermatitis Chrysanthemum, Daisy, Mum
Cicuta maculata, sp. Diarrhea, seizures, tremors, extreme abdominal pain, dilated pupils, fever, bloating, respiratory depression, death Cowbane, Poison Parsnip, Water Hemlock
Citrus aurantifolia Vomiting, diarrhea, depression, potential photosensitivity. Lime
Citrus aurantium Vomiting, diarrhea, depression, potential photosensitivity. Bergamot, Bergamot Orange, Citrus bergamia
Citrus limonia Vomiting, diarrhea, depression, potential photosensitivity. Lemon
Citrus mitis Vomiting, diarrhea, depression, potential photosensitivity. Calamondin Orange
Citrus paradisii Vomiting, diarrhea, depression, potential photosensitivity. Grapefruit
Citrus sinensis Vomiting, diarrhea, depression, potential photosensitivity. Orange
Clematis sp. Vomiting, diarrhea, salivation Clematis, Leatherflower, Virgin’s Bower
Clivia minata, sp. Vomiting, diarrhea, salivation, convulstions, low blood pressure, tremors, cardiac arrhythmia. Bulbs are the most poisonous. Caffre Lily, Caple Clivia, Clivia Lily, Clivia nobilis, Clivies, Kaffir Lily, Klivia
Colchicum autumnale Oral irritation, bloody vomiting, diarrhea, shock, multi-organ damage, bone marrow suppression Autumn Crocus, Meadow Saffron
Coleus ampoinicus Vomiting (sometimes with blood), diarrhea (sometimes with blood), depression, anorexia Bread and Butter Plant, Coleus, East Indian Thyme, Indian Borage, Maratha, Militini, Spanish Thyme
Colocasia esculenta Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Caladium, Elephant’s Ear, Malanga, Taro
Conium maculatum Central nervous system excitation, muscle tremors, incoordination, excessive salivation, frequent bowel movements and urination, abdominal pains, increased respitory rate, weakness progressing to muscular paralysis, and possible death due to respitory paralysis. Toxicity varies based on plant maturity and environmental conditions; Dry plant material non-toxic. California Fern, Deadly Hemlock, Nebraska Fern, Poison Hemlock, Poison Parsley, Spotted Hemlock, Winter Fern
Convallaria majalis Vomiting, irregular heartbeat, low blood pressure, disorientation, seizures, coma Lily of the Valley
Cordyline australis Vomiting (sometimes with blood), depression, anorexia, hypersalivation Giant Dracaena, Grass Palm, Palm Lily
Cordyline terminalis Vomiting (sometimes with blood), depression, anorexia, hypersalivation Baby Doll Ti Plant, Good-Luck Plant, Hawaiian Ti Plant, Ti Plant
Crassula arborescens Nausea, retching Chinese Jade, Silver Jade Plant, Silver Dollar
Crassula argentea Vomiting, depression Baby Jade, Chinese Rubber Plant, Dwarf Rubber Plant, Jade Plant, Jade Tree, Japanese Rubber Plant
Cycas revoluta, sp. Vomiting (sometimes with blood), bloody diarrhea, dark stools, jaundice, increased thirst, bruising, liver failure, and death. Seeds are the most toxic. Consumption of 1-2 seeds is enough to cause death. Cycads, Fern Palm, Sago Palm
Cyclamen spp. Vomiting, diarrhea, salivation. Ingestion of large amounts can cause heart rhythm abnormalities, seizures, and death. Tubers are the most toxic. Cyclamen, Sowbread
Dahlia sp. Mild gastrointestinal discomfort, mild dermatitis Dahlia
Delphinium sp. Constipation, colic, salivation, muscle tremors, stiffness, weakness, recumbency, convulsions, possible death from cardiac failure and/or respitory paralysis Delphinium, Larkspur
Dianthus caryophyllus Mild gastrointestinal discomfort, mild dermatitis Carnation, Pinks, Wild Carnation, Sweet William
Dieffenbachia amoena, sp. Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Charming Dieffenbachia, Dieffenbachia, Dumbcane, Exotica, Exotica Perfection, Giant Dumb Cane, Spotted Dumb Cane, Tropic Snow
Dieffenbachia picta Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Gold Dieffenbachia, Variable Dieffenbachia
Digitalis purpurea Vomiting, diarrhea, weakness, cardiac arrhythmias, cardiac failure, death Foxglove
Dracaena deremensis Vomiting, depression, inappetence, drooling, incoordination, weakness Janet Craig Plant, Striped Dracaena, Warneckii
Dracaena fragrans, spp. Vomiting (occasionally with blood), depression, anorexia, hypersalivation Corn Plant, Cornstalk Plant, Dracaena, Dragon Tree, Ribbon Plant
Dracaena marginata Vomiting (occasionally with blood), depression, anorexia, hypersalivation, dilated pupils Madagascar Dragon Tree, Red-Marginated Dracaena
Dracaena surculosa Vomiting, depression, inappetence, drooling, incoordination, weakness Florida Beauty, Gold Dust Dracaena, Spotted Dracaena
Eichhornia crassipes Vomiting, anorexia Water Hyacinth
Epipremnum aureum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Devil’s Ivy, Golden Pothos, Ivy Arum, Marble Queen, Pothos, Taro Vine
Erigeron speciosus Mild vomiting, diarrhea Fleabane, Horseweed, Seaside Daisy, Showy Daisy
Eucalyptus spp. Vomiting, diarrhea, salivation, depression, weakness Eucalyptus
Euonymus atropurpurea Vomiting, diarrhea, abdominal pain, weakness. Large doses can cause heart rhythm abnormalities. Burning Bush, Euonymus occidentalis, European Spindle Tree, Spindle Tree, Wahoo
Euphorbia milii Oral and abdominal irritation, occasionnally causes vomiting. Low toxicity. Crown of Thorns, Pencil Cactus
Euphorbia pulcherrima Oral and abdominal irritation, occasionnally causes vomiting. Low toxicity. Poinsettia
Fagopyrum spp. Photosensitization developing into dermal inflamation and ulcers Buckwheat
Ficus benjamina Oral irritation, vomiting, salivation, contact dermatitis Fig, Indian Rubber Plant, Weeping Fig
Gardenia jasminoides Mild vomiting, mild diarrhea, hives Cape Jasmine, Gardenia
Gladiolus sp. Vomiting, diarrhea, salivation, and lethargy. Bulbs (corms) are the most toxic. Gladiola
Gloriosa superba Bloody vomiting, bloody diarrhea, salivation, liver damage, bone marrow suppression, shock, kidney failure, death Climbing Lily, Gloriosa Lily, Glory Lily, Superb Lily
Gypsophila elegans Vomiting, diarrhea Baby’s Breath, Maidens Breath
Hedera helix Vomiting, abdominal pain, hypersalivation, and diarrhea. Foliage is more toxic than berries. Branching Ivy, California Ivy, English Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy
Helleborus niger Drooling, abdominal pain, diarrhea, colic, depression Christmas Rose, Easter Rose, Lenten Rose, Hellebore
Heracleum maximum Photosensitization developing into dermal inflamation and ulcers, ocular toxicity Cow Parsnip, Giant Hogweed
Hibiscus syriacus Vomiting, diarrhea, nausea, anorexia Hibiscus Shrub, Rose of China, Rose of Sharon
Hippeastrum spp. Vomiting, salivation, diarrhea. Large amounts can cause convulsions, tremors, low blood pressure, and cardiac arrhythmias. Bulbs are the most toxic. Amaryllis, Barbados Lily, Fire Lily, Lily of the Palace, Ridderstjerne
Hosta sp. Vomiting, diarrhea, depression Funkia, Hosta, Plantain Lily
Humulus lupulus Panting, high body temperature, seizures, death Hops
Hyacinthus orientalis Vomiting, diarrhea, and dermatitis. Bulbs are the most toxic. Hyacinth
Hydrangea arborescens Vomiting, diarrhea, depression, cyanide intoxication (rare) Hills of Snow, Hortensia, Hydrangea, Seven Bark
Hypericum perforatum Chemical sunburn on light and unpigmented skin, dermatitis, itching, skin ulcers Goatweed, Klamath Weed, St-John’s Wort
Ilex aquifolium Vomiting, diarrhea, depression. Stems are the most toxic. English Holly, European Holly, Inkberry, Oregon Holly, Winterberry
Ilex opaca Vomiting, diarrhea, depression. Stems are the most toxic. American Holly, European Holly, Inkberry, Oregon Holly, Winterberry
Ipomea batatas Diarrhea, hallucinations Sweet Potato Vine
Ipomea spp. Gastrointestinal upset, agitation, tremors, disorientation, ataxia, and anorexia. Seeds are the most toxic, and may cause hallucinations. Morning Glory
Iris sp. Vomiting, diarrhea, salivation, and lethargy. Rhizomes are the most toxic. Bearded Iris, Flag Iris, Iris, Snake Lily, Water Snake
Juglans nigra Tremors and seizures from mouldy nuts
Ligustrum japonicum, vulgare Gastrointestinal upset, incoordination, increased heart rate, death (rare) Amur, Common Privet, Privet, Wax-leaf
Kalanchoe tubiflora Vomiting, diarrhea, abnormal heart rhythm (rare) Chandelier Plant, Devil’s Backbone, Kalanchoe, Mother-In-Law Plant, Mother of Millions
Lantana camara Vomiting, diarrhea, labored breathing, weakness, liver failure (rare) Lantana, Red Sage, Shrub Verbena, Yellow Sage
Lathyrus latifolius Weakness, lethargy, pacing, head pressing, tremors, seizures, death Everlasting Pea, Perennial Pea, Sweet Pea
Leucothoe davisiae, sp. Vomiting, diarrhea, depression, cardiovascular collapse, hypersalivation, weakness, low blood pressure, coma, death. Ingestion of a few leaves is enough to cause serious problems. Black Laurel, Dog Hobble, Dog Laurel, Fetter Bush, Sierra Laurel
Lobelia cardinalis Vomiting, diarrhea, depression, excessive salivation, abdominal pain, heart rhythm disturbance Cardinal Flower, Indian Pink, Lobelia
Lycopersicon spp. Diarrhea, hypersalivation, inappetence, severe gastrointestinal upset, drowsiness, CNS depression, confusion, behavioral change, weakness, dilated pupils, slow heart rate Tomato Plant
Lyona sp. Vomiting, diarrhea, depression, cardiovascular collapse, hypersalivation, weakness, low blood pressure, coma, death. Ingestion of a few leaves is enough to cause serious problems. Fetterbush, Maleberry, Staggerberry
Macadamia integrifolia Depression, hyperthermia, weakness, muscular stiffness, vomiting, tremors, increased heartrate Australian Nut, Macadamian Nut, Queenland Nut
Malus sylvestris Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Apples and crabapples
Melia azedarach Diarrhea, vomiting, salivation, depression, weakness, seizures. Berries are the most toxic. Bead Tree, China Ball Tree, Chinaberry Tree, Japanese Bead Tree, Paradise Tree, Persian Lilac, Pride-of-India, Texas Umbrella Tree, White Cedar
Monstera deliciosa Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Ceriman, Cutleaf Philodendron, Hurricane Plant, Mexican Breadfruit, Mother-in-Law, Swiss Cheese Plant
Nandina domestica Weakness, incoordination, seizures, respitory failure, coma, and death (rare). Heavenly Bamboo, Nandina, Sacred Bamboo
Narcissus spp. Vomiting, diarrhea, salivation, convulsions, low blood pressure, tremors, cardiac arrythmia. Bulbs are the most toxic. Daffodil, Jonquil, Narcissus, Paperwhite
Nerium oleander Diarrhea (possibly bloody), colic, sweating, incoordination, shallow/difficult breathing, muscle tremors, recumbency, and possible death from cardiac arrest. All parts highly toxic. Oleander, Rose-Bay
Nicotiana glauca Vomiting, hyperexcitability followed by depression, incoordination, paralysis, possibly death Flowering Tobacco, Mustard Tree, Nicotiana, Tobacco, Tree Tobacco
Oxalis spp. Colic, possible kidney failure if large quantities are ingested. Good Luck Plant, Shamrock, Sorrel
Paeonia officinalis Vomiting, diarrhea, depression Peony
Pelargonium sp. Vomiting, anorexia, depression, dermatitis (Annual) Geranium
Persea americana Vomiting, diarrhea. Also toxic to birds and rabbits. Alligator Pear, Avocado
Petroselinum crispum Photosensitization, Occular toxcicity Spring Parsley
Philodendron bipennifolium Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Cordatum, Fiddle-Leaf, Fruit Salad Plant, Heartleaf Philodendron, Horseshoe Philodendron, Panda Plant, Red Emerald, Red Princess, Saddle Leaf, Split Leaf Philodendron
Philodendron oxycardium Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Cordatum, Fiddle-Leaf, Fruit Salad Plant, Heartleaf Philodendron, Horseshoe Philodendron, Panda Plant, Red Emerald, Red Princess, Saddle Leaf, Split Leaf Philodendron
Philodendron selloum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Lacy Tree Philodendron
Phoradendron flavescens Vomiting, diarrhea, low blood pressure (rare), gastrointestinal disorders, erratic behavior, cardiovascular collapse, dyspnea (shortness of breath),cardiac arrhythmia American Mistletoe
Pieris japonica Vomiting, diarrhea, depression, hypersalivation, weakness, coma, low blood pressure, cardiovascular collapse, death. Ingestion of a few leaves is enough to cause serious problems. Japanese Andromeda, Pieris, Lily-of-the-Valley Bush
Podocarpus macrophylla Severe vomiting and diarrhea Buddhist Pine, Japanese Yew, Podocarpus, Southern Yew, Yew Pine
Podophyllum peltatum Vomiting, diarrhea, lethargy, panting, coma (rare), dermal redness, skin ulcers American Mandrake, Duck’s Foot, Hog Apple, Indian Apple Root, Mayapple, Racoonberry, Umbrella Leaf, Wild Lemon
Poinciana gilliesii Oral irritation, intense burning of the mouth, excessive drooling, vomiting, diarrhea, difficulty swallowing, incoordination. Deadly to rabbits. Barbados Pride, Bird of Paradise, Brazilwood, Poinciana
Polyscias guilfoylei Vomiting, anorexia, depression, contact dermatitis Aralia guilfoylei, Coffee Tree, Geranium-Leaf Aralia, Wild Coffee Tree
Portulaca oleracea Tremors, salivation, kidney failure Moss Rose, Pigwee, Purslane, Pusley, Portulaca, Rock Moss
Primula vulgaris Mild vomiting Primrose
Prunus armeniaca Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Apricot
Prunus avium Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Sweet Cherry
Prunus cerasus Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Sour Cherry
Prunus domestica Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Damson, Gage, Italian Plum, Prune
Prunus persica Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Peach
Prunus salicina Brick red mucous membrane, panting, difficulty breathing, dilated pupils, shock. Stems and leaves particularly dangerous when wilting. The seeds are also toxic. Japanese Plum
Ranunculus acris Vomiting, diarrhea, depression, anorexia, hypersalivation, wobbly gait Burwort, Buttercup, Butter Cress, Crowfoot Burwort, Figwort
Ranunculus sp. Vomiting, diarrhea, depression, anorexia, hypersalivation, wobbly gait Buttercup, Butter Cress, Figwort,
Rheum rhabarbarium Salivation, tremors, kidney failure Pie Plant, Rhubarb
Rhododendron spp. Vomiting, diarrhea, hypersalivation, weakness, coma, hypotension, CNS depression, cardiovascular collapse, death. Ingestion of a few leaves is enough to cause serious problems. Azalea, Rhododendron, Rosebay
Ricinus communis Highly toxic – ingestion of less than an ounce can be lethal. Loss of appetite, excessive thirst, weakness, colic, trembling, sweating, loss of coordination, difficulty breathing, fever, bloody diarrhea, convulstions, coma. Seeds contain the most toxins. African Wonder Tree, Castor Bean, Mole Bean Plant
Robinia sp. Loss of appetite, depression, stupor, weakness with rear end paralysis, laminitis, coldness of the extremities, dilated pupils, difficulty breathing, weak irregular pulse, and diarrhea (may be bloody). Stems, bark, and young shoots are the most toxic. Locust
Rumex sp. Tremors, salivation, kidney failure Dock, Sorrel
Sansevieria trifasciata Vomiting, diarrhea, nausea Golden Bird’s Nest, Good Luck Plant, Mother-in-Law’s Tongue, Snake Plant
Scindapsus aureus Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Golden Pothos, Marble Queen
Scindapsus pictus Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Satin Pothos, Silk Pothos
Schefflera actinophylla Mild vomiting and diarrhea Australian Ivy Palm, Brassaia actynophylla, Octopus Tree, Schefflera, Starleaf, Umbrella Tree
Senecio sp. Vomiting, diarrhea, anorexia, depression, ataxia, weight loss, weakness, sleepiness, yawning, incoordination, yellowish discolouration to mucous membranes, aimless walking, chewing motions, head pressing,  liver damage, and liver failure.  Symptoms can progress rapidly over a few days. Golden Ragwort, Grounsel, Ragwort
Solanum dulcamara Vomiting, diarrhea, drowsiness, low blood pressure, low heart rate Blue Blindweed, Blue Nightshade, Climbing Nightshade, Deadly Nightshade, Devil’s Apple, European Bittersweet, Felonwort, Poisonous Nightshade, Scarlet Berry, Soda Apple, Violet Bloom, Woody Nightshade
Solanum nigrum Hypersalivation, innapetence, severe gastrointestinal upset, diarrhea, drowsiness, CNS depression, confusion, behavioral change, weakness, dilated pupils, slow heart rate Black Nightshade, Deadly Nightshade, Nightshade
Solanum pseudocapsium Gastrointestinal disturbances, possible ulcuration of the gastrointestinal system, depression, seizures, respitory depression, shock Jerusalem Cherry, Natal Cherry, Ornamental Pepper, Winter Cherry
Spathiphyllum sp. Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Madonna Lily, Mauna Loa Peace Lily, Peace Lily
Sphenosciadium capitellatum Photosensitization, Occular toxcicity Ranger’s Button, White Heads
Strelitzia reginae Nausea, vomiting, drowsiness. Fruit and seed most toxic. Bird of Paradise Flower, Bird’s Tongue Flower, Crane Flower
Symplocarpus foetidus Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Meadow Cabbage, Polecat Weed, Skunk Cabbage, Skunk Weed, Swamp Cabbage
Syngonium podophyllum Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing African Evergreen, Arrow-Head Vine, Green Gold Naphtysis, Nephtytis
Tulipa sp. Vomiting, diarrhea, depression, and hypersalivation. Bulbs are the most toxic. Tulip
Taxus baccata, brevifolia, sp. Tremors, difficulty breathing, vomiting, seizures, sudden death from acute heart failure. Berries the most toxic. Anglo-Japanse Yew, English Yew, Japanese Yew, Pacific Yew, Western Yew
Taxus canidensus Tremors, difficulty breathing, vomiting, seizures, sudden death from acute heart failure. Berries the most toxic. American Yew
Tradescantia flumeninsis Dermatitis Speedy Harry, Wandering Jew
Thevetia peruviana Vomiting, diarrhea, slow heart rate Yellow Oleander
Wisteria sp. Vomiting (sometimes bloody), diarrhea, depression Wisteria
Yucca sp. Vomiting, diarrhea Adam’s Needle, Yucca
Zamia furfuraceae Vomiting, melena, icterus, increased thirst, hemorrhagic gastroenteritis, bruising, coagulopathy, liver damage, liver failure, death Cardboard Palm, Cycads, Zamias
Zamia pumila Vomiting, melena, icterus, increased thirst, hemorrhagic gastroenteritis, bruising, coagulopathy, liver damage, liver failure, death Cardboard Palm, Coontie Palm, Cycads, Sago Palm, Zamias
Zanthedeschia aethiopica Oral irritation, intense burning of the mouth, excessive drooling, vomiting, difficulty swallowing Arum Lily, Calla Lily, Florist’s Calla, Garden Calla, Pig Lily, Trumpet Lily, White Arum
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