| Common Name | Scientific Name | Parts know to be poisonous |
L |
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Lantana Larkspur Laurel Lily-of-the-Valley Lobelia Locoweed Lords and Ladies (Cuckoopint) Lupine |
Lantana spp. Delphinium spp. Kalmia, Ledum, Rhododendron spp. Convallaria majalis Lobelia spp. Astragalus mollissimus Arum spp. Lupinus spp. |
All parts. All parts. All parts. All parts. All parts. All parts. All parts. |
|
M |
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| Marijuana Mayapple Mescal Bean Milkweed Mistletoe Mock Orange Moonseed Monkshood Morning Glory Mushrooms |
Cannabis
sativa Podophyllum spp. Sophora spp. Asclepias spp. Santalales spp. Poncirus spp. Menispermum canadense Aconitum spp. Ipomoea spp. Amanita spp. and many others |
Leaves All parts except fruit. Seeds All parts, especially berries. Fruit Leaves and roots. All parts. Bulbs |
| N | ||
| Narcissus Nightshades (All Types) |
Narcissus
spp. Solanum spp. |
Bulbs Berries and leaves. |
| O | ||
| Oleander | Nerium oleander | Leaves, branches, and nectar. |
| P | ||
| Peach Pear Peony Periwinkle Peyote Philodendron Pigweed Poinsetta Poison Ivy Poison Oak Poison Sumac Poppy Pokeweed (Inkberry) Potato Pothos Primrose Privet |
Prumus persica Pyrus spp. Paeonia officinalis Vinca minor, Vinca rosea Lophophora williamsii Philodendron spp. Amaranthus Toxicodendron radicans Toxicodendron quercifolium Rhux vernix Euphorbia pulcherrima Papaver somniferum and related spp. Phytolacca americans Solanum tuberosum Eprimemnum aureum Primula spp. Ligustrum vulgare |
Leaves, pit, and bark. Leaves, seeds, and bark. Leaves and stems. Sap Sap Leaves and flowers. Roots, leaves, and seeds. Leaves, roots, and berries. Eyes and new shoots. All parts. |
| R | ||
| Ragwort Red Maple Rhododendron Rhubarb Rosary Pea (Indian Licorice) |
Senecio jacobea Acer rubrum Rhododendron spp. Rheum rhaponticum Abrus precatorius |
All parts Leaves |
| S | ||
| Sage Shamrock Plant Skunk Cabbage Snowdrop Snow-on-the-Mountain (Ghostweed) Sorrel Spurges Star-of-Bethlehem Sweet Pea |
Salivia
officinalis Medicgo lupulina Symplocarpus foetidus Ornithogalum umbellatum Euphorbia marginata Rumex spp. Euphorbia spp. Ornithogalum umbellatum Lathyrus latifolius |
All parts. All parts, especially buds. All parts. Seeds and fruits. |
| T | ||
| Tobacco Tomato Tulip |
Nicotine
spp. Lycopersicon esculentum Tulipa spp. |
Leaves Stems and leaves. |
| V | ||
| Virginia Creeper Vetches |
Pathenocissus quinquefolia spp Vicia spp. |
Sap |
| W | ||
| Water Hemlock Waxberry Wisteria |
Cicuta spp. Symphoricarpos albus Wisteria spp. |
All parts. |
| Y | ||
| Yam
Bean Yew |
Pachyrhizus erosus Taxus spp. |
Roots and immature
pods. Needles, seeds, leaves, stems, bark and wood. |
|