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1 | Latin Binomial | Common Name | Family | Common look-alikes | Toxic Constituents | Parts Toxic | Toxicity Effects | Topical Toxicity | Safe Practical Uses | ||||||||||||||||||||
2 | Aconitum napellus | Monkshood | Ranunculaceae | Geranium | Aconitine | All parts (roots most toxic) | Diarrhea, convulsions, ventricular arrhythmia and death; depolarizes sodium channels | Mild toxicity: paraesthesia, including tingling and feelings of coldness in the extremities, headache, nausea, and heart palpitations | - | ||||||||||||||||||||
3 | Actaea pachypoda | Baneberry | Ranunculaceae | Black Cohosh | Unknown (possibly glycosides) | All parts (berry and roots most toxic) | Severe pain and burning of mouth and throat; salivation; severe stomach cramps, headache, diarrhea; dizziness and hallucinations. Toxic if eaten in large quantities. Roots and berries can be lethal. | Does not cause contact dermatitis | - | ||||||||||||||||||||
4 | Ageratina altissima | White Snakeroot | Asteraceae | Boneset | Trematone and glycosides | All parts (roots most toxic) | Qeakness, nausea, abdominal pain, vomiting, delirium, cardiac damage, prostration and eventually, coma, death | None known | - | ||||||||||||||||||||
5 | Apocynum cannibidium | Dogbane | Apocynaceae | Milkweed | Cardiac glycosides | All parts | Cardiac arrest, nausea, vomiting, weakness, diarrhea | The milky sap from stems can cause blisters on skin, contact dermatitis | Cordage | ||||||||||||||||||||
6 | Arisaema triphyllum | Jack-in-the-Pulpit | Araceae | Triliums | Calcium oxalate | All parts | Causes severe pain of the mouth if ingested; burning and swelling of lips, tongue, and throat, excessive drooling, and vomiting | May cause burning or tingling of the skin if handled. Does not cause contact dermatitis | - | ||||||||||||||||||||
7 | Ascelpias syriaca | Milkweed | Apocynaceae | Dogbane | Cardiac glycosides | All parts (flower least toxic) | Vomiting, stupor, weakness, spasms | None known | Shoots & Flowers edible with proper preparation, sap may be used topically for warts | ||||||||||||||||||||
8 | Atropa belladona | Deadly Nightshade | Solanaceae | Other nightshades | Tropine alkaloids | All parts | Lethal in very small doses. Fever, rapid pulse, dilation of pupils, hot and dry flushed skin, headache, dry mouth, difficulty of swallowing, burning of the throat, hallucinations, convulsion, death | None known | - | ||||||||||||||||||||
9 | Celastrus orbiculatus, C. scandens | Oriental Bittersweet, American Bittersweet | Celastraceae | Vining honeysuckles, often grows in multiflora rose (can be mistaken for rose hips if not paying attention) | Possibly evonosid or euonymin | All parts | Vomiting, diarrhea, weakness, convulsions | None known | - | ||||||||||||||||||||
10 | Cicuta maculata | Water Hemlock | Apiaceae | Apiaceae family espc. Angelica, Sambucus | Cicutoxin | All parts | Lethal in very small doses. Muscle spasms, dilated pupils, dizziness, diarrhea, stomach pain, convulsions/seizures, tremors, fever, bloat, respiratory depression, death | Can cause blistering of the skin, numbness, etc. when handled | - | ||||||||||||||||||||
11 | Conium maculatum | Poison Hemlock | Apiaceae | Apiaceae family | Piperidine alkaloids (Coniine) | All parts | Lethal in very small doses. Salivation, vomiting, diarrhea, muscular weakness, paralysis, nervousness, trembling, dilation of pupils, weak pulse, convulsions, coma. | Can cause blistering of the skin, numbness, etc. when handled | - | ||||||||||||||||||||
12 | Convallaria majalis | Lily of the Valley | Asparagaceae | Ramps | Cardiac glycosides & saponins | All parts | Irregular/slow pulse, abdominal pain and diarrhea, low blood pressure, disorientation, coma, seizures. Toxic only if eaten in large quantities. | None known | - | ||||||||||||||||||||
13 | Datura stramonium | Jimsonweed | Solanaceae | Other nightshades | Tropane alkaloids | All parts (seeds most toxic) | Hot, dry, and flushed skin, pupil dilation, headache, delirium, hallucinations, amnesia, respiratory depression, arrhythmias, rapid and weak pulse, convulsions, coma, death | Unknown, toxins may be absorbed transdermally enough to produce altered state | - | ||||||||||||||||||||
14 | Digitalis spp. | Foxglove | Plantaginaceae | Scullcap (specifically D. lanata) | Cardiac glycosides (Digitoxin) | All parts | Nausea, vomiting, diarrhea, stomach pain, severe headache, irregular and slow pulse, tremors, unusual color visions, convulsions, cardiac arrhythmia, death | Transdermal absorption seems unlikely -does not cause contact dermatitis | - | ||||||||||||||||||||
15 | Euphorbia lathyris | Gopher Spurge | Euphorbiaceae | None known | Diterpene esters in latex | All parts | Nausea, vomiting, diarrhea when ingested | Redness, swelling, blisters after some delay following contact with skin | - | ||||||||||||||||||||
16 | Euphorbia marginata | Snow on the Mountain | Euphorbiaceae | None known | Diterpene esters in latex | All parts | Nausea, vomiting, diarrhea when ingested | Redness, swelling, blisters after some delay following contact with skin | - | ||||||||||||||||||||
17 | Heracleum mantegazzianum | Giant Hogweed | Apiaceae | Apiaceae familt | Furanocoumarins | All parts | No known cases of ingestion (I don't think you'd get that far along in the process) | Reaction may occur from even brushing up against it.Severe contact dematitis, blistering, and photosensitization. Severe cases may result in amputation, scarring, blindness, or death | Edible when thoroughly cooked | ||||||||||||||||||||
18 | Ilex spp. | Holly | Aquifoliaceae | Oregon Grape | Saponins | Berries | Vomiting, diarrhea, bdominal cramping, and occasionally dermatitis. There can be allergic sensitization and worsening dermatitis with repeat exposures. Rarely, mydriasis, hyperthermia, and drowsiness | None known | - | ||||||||||||||||||||
19 | Kalmia latifolia | Mountain Laurel | Ericaceae | Blueberry | Grayanotoxin, arbutin, and andromedotoxin | All parts | Interferes with normal skeletal muscle, cardiac muscle, and nerve function. Clinical effects typically occur within a few hours after ingestion, and can include acute digestive upset, excessive drooling, loss of appetite, frequent bowel movements/diarrhea, colic, sweating, abdominal pain, depression, weakness, loss of coordination, stupor, watering of eyes and nose, nausea, cardiac failure, vomiting, leg paralysis, weak heart rate, death | None known | - | ||||||||||||||||||||
20 | Narcissus pseudonarcissus | Daffodil | Amaryllidaceae | Daylillies | Phenanthridine alkaloids (lycorine) and calcium oxalates | All parts (bulbs most toxic) | Nausea, vomiting, diarrhea, salivation, trembling, convulsions, low blood pressure, cardiac arrhythmia | Contact dermatitis ("lily rash") following the handling of bulbs, flowers, and stems | - | ||||||||||||||||||||
21 | Ornithogalum umbellatum | Star of Bethlehem | Asparagaceae | Wild Garlic, Spring Beauties | Cardiac glycosides (convallatoxin and convalloside) | Aerial parts | Nausea, salivation, vomiting, diarrhea, and shortness of breath, as well as pain, burning, and swelling of lips, tongue, and throat, death | May cause skin irrtation with prolonged handling | Bulbs are edible raw (verified: I didn't die. They taste like crap) | ||||||||||||||||||||
22 | Phytolacca americana | Poke | Phytolaccaceae | Elderberry | Saponins | All parts except berry flesh (seeds are toxic) | Nausea, pink foamy diarrhea, respiratory distress, muscle spasms, thirst, lethargy, excessive salivation, urinary incontentince, severe gastroinstinal pain; note: only recorded cases of lethality involved consumption of massive quantities - otherwise all toxicity cases make a full recovery <1 week | May cause contact dermatitis | Roots & berries medicinal (low dose), young shoots & leaves edible with proper preparation, most toxic parts: seeds, roots, mature leaf/stem | ||||||||||||||||||||
23 | Petasites spp. | Sweet Coltsfoot | Asteraceae | Tussilago | Pyrrolizine alkaloids | All parts | Hepatotoxic when used in high doses or for long periods of time | None known | Low dose medicinal | ||||||||||||||||||||
24 | Ranunculus spp. | Buttercup | Ranunculaceae | Sochan | Protoanemonin, released from the glycoside ranunculin. | All parts | Burning of the mouth, abdominal pain, vomiting, hypersalivation, depression, anorexia, wobbly gait, and bloody diarrhea | Skin redness, burning sensation, and blisters following contact with sap | Some species are supposedly edible when cooked (not verified) | ||||||||||||||||||||
25 | Rhododendron spp. | Rhododendron, Azalea | Ericaceae | Teaberry, Blueberry | Grayanotoxin and andromedotoxin | All parts | Salivation, watering of eyes and nose, abdominal pain, loss of energy, depression, nausea and vomiting, diarrhea, weakness, difficult breathing, progressive paralysis of arms and legs, cardiac failure, coma, death | None known | - | ||||||||||||||||||||
26 | Sambucus racemosa | Red Elder | Adoxaceae | Black & Blue Elder | Cyanogenic glycosides | All parts (flower least toxic; leaves, bark, fruits most toxic) | Mild toxicity; nausea, vomiting, stupor, weakness | None known | Medicinal when properly prepared | ||||||||||||||||||||
27 | Securigera varia | Crown Vetch | Fabaceae | Alfalfa | Nitroglycosides | All parts | Vomiting, diarrhea, slowed pulse | None known | - | ||||||||||||||||||||
28 | Senecio spp. | Ragwort, Groundsel | Asteraceae | Sow Thistle, Dandelin, Wild Lettuce | Pyrrolizine alkalioids | All parts | Hepatotoxic when used in high doses or for long periods of time | None known | - | ||||||||||||||||||||
29 | Solanum carolinense | Horse Nettle | Solanaceae | Other nightshades; Ground Cherry | Solanine | All parts | Nausea, vomiting, salivation, drowsiness, abdominal pain, diarrhea, weakness, respiratory depression, death | None known | - | ||||||||||||||||||||
30 | Solanum dulcamara | Woody Nightshade | Solanaceae | Other nightshades | Solanine, dulcamarine (atropine/anticholanergic-like) | All parts | Salivation, bradycardia, tachycardia, hypotension, and altered mental status have also been documented. Symptoms usually occur several hours after ingestion and may persist for several days. The solanine effects seem more potent in children | None known | - | ||||||||||||||||||||
31 | Solanum nigrum | Black Nightshade | Solanaceae | Other nightshades | Solanine | Leaf, stem | Hypersalivation, inappetence, severe gastrointestinal upset, diarrhea, vomiting, drowsiness, CNS depression, abdominal pain, confusion, nausea, behavioral change, weakness, dilated pupils, slow heart rate, death | None known | Ripe berries are edible - large quantities OK. Leaves edible when properly prepared. | ||||||||||||||||||||
32 | Symplocarpus foetidus | Eastern Skunk Cabbagge | Araceae | False Hellebore, Ramps | Calcium oxalate | All parts | Severe pain and burning of mouth, lips, and throat, drooling, nausea, excessive drooling, vomiting, difficulty swallowing, and diarrhea | May cause burning and tingling of the skin if handled for long periods | Dried root medicinal, young leaves edible when properly prepared | ||||||||||||||||||||
33 | Taxus canadensis | Canada Yew | Taxaceae | Pinaceae & Cupressacea; Fir, Spruce, etc. | Taxine | All parts except aril | Nervousness, trembling, slow pulse, pupil dilation, seizures, difficult breathing, abdominal pain, vomiting, diarrhea, weakness, convulsions, death | None known | Arils edible, seed inside (and all other parts) toxic | ||||||||||||||||||||
34 | Toxicodendron radicans | Poison Ivy | Anacardiaceae | English Ivy, Virginia Creeper | Urushiol | All parts | Topically: Contact dermitits, red, itchy, painful, blistering skin.... Ingestion: Gastroinestinal and respiratory distress; inhaling poiso ivy smoke can potentially be fatal because it causes lung inflammation and fluid build-up in the lungs | Sever itching and blistering of the skin, delayed reaction upon contact with the plant material or smoke. Symptoms can be avoided by washing affected area immediately with soap and water. | - | ||||||||||||||||||||
35 | Toxicodendron vernix | Poison Sumac | Anacardiaceae | Other sumacs; Staghorn Sumac | Urushiol | All parts | Ingestion: fever, coughing, wheezing, gastrointestinal distress. Inhaling poison sumac smoke can potentially be fatal because it causes lung inflammation and fluid build-up in the lungs. | Sever itching and blistering of the skin, delayed reaction upon contact with the plant material or smoke. Symptoms can be avoided by washing affected area immediately with soap and water. | - | ||||||||||||||||||||
36 | Vinca spp. / Catharanthus rosea form. Vinca rosea | Periwinkle | Apocynaceae | Violets | Vinblastine | All parts | Low blood pressure, tremors collapse | None known | - | ||||||||||||||||||||
37 | Veratrum viride | False Hellebore | Melanthiaceae | Skunk Cabbage, Ramps | Steroidal alkaloids | All parts | Burning of mouth and throat, salivation, headache, stomach pain, vomiting, diarrhea, weakness, sweating, convulsions | Toxins may be absorbed transdermally | - | ||||||||||||||||||||
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