Alder Buckthorn (Frangula alnus)
Annual Mercury (Mercurialis annua)
Arum Lily (Zantedeschia species)
Autumn Crocus (Colchicum autumnale)
Azalea (Rhododendron species)
Beech (Fagus sylvatica)
Birthwort (Aristolochia species)
Black Bryony (Tamus communis)
Bluebell (Hyacinthoides non-scripta)
Box (Buxus sempervirens)
Bracken (Pteridum aquilinum)
Buckthorn (Rhamnus carthartica)
Buttercup (Ranunculus species)
Cannabis (Cannabis sativa)
Castor Oil Plant (Ricinus communis)
Cheese Plant (Monstera deliciosa)
Cherry Laurel (Prunus laurocerasus)
Chickweed ( Stellaria species)
Columbine (Aquilegia species)
Corn Cockle (Agrostemma githago)
Cowbane (Cicuta virosa)
Crow Garlic (Allium vineale)
Cuckoo Pint (Arum maculatum)
Cypress (Cupressus species)
Daffodil (Narcissis species)
Deadly Nightshade (Atropa belladonna)
Delphinium, Larkspur (Delphinium species)
Dodder (Cuscuta species)
Dog's Mercury (Mercurialis perennis)
False Hellebore (Veratrum species)Fat Hen ( Chenopodium album)
Flamingo Flower (Anthurium species)
Foxglove (Digitalis purpurea)
Giant Hogweed (Heracleum mantegazzianum)
Greater Celandine (Chelidonium majus)
Ground Ivy (Glechoma hederacea)
Hydrangea (Hydrangea species)
Hemlock (Conium maculatum)
Hemlock Water Dropwort ( Oenanthe crocata)
Hemp Nettle (Galeopsis species)
Henbane (Hyoscyamus niger)
Holly (Ilex aquifolium)
Horse Chesnut ( Aesculus hippocastanum)
Horse Radish (Armoracia rusticana)
Horsetail (Equisetum species)
Iris (Iris species)
Ivy (Hedera helix)
Jonquil (Narcissus species)
Laburnum (Laburnum anagyroides)
Laurel (Prunus laurocerasus)
Lily of the Vally (Convallaria majalis)
Lupin (Lupinus species)?
Marsh Marigold (Caltha palustris)
Mezereon (Daphne mezereum)
Milk Vetch / Loco Weed (Astragalus species)
Mistletoe (Viscum album)
Monkshood (Aconitum napellus)
Morning Glory (Ipomoea species)
Narcissus (Narcissus species)
Oak (Quercus species)
Oleander (Nerium oleander)
Onion (Allium cepa)
Opium Poppy (Papaver somniferum)
Perforate St. John's Wort (Hypericum perforatum)
Petty Spurge (Euphorbia peplus)
Pieris (Pieris species)
Pokeweed (Phytolacca americana)
Poppy (Papaver species)
Potato (Solanum tuberosum)
Privet (Ligustrum species)
Purple Viper's Bugloss (Echium plantagineum)
Ragwort (Senecia jacobaea)
Ramsons (Allium ursinum)
Red Maple (Acer rubrum)
Rhododendron (Rhodendron ponticum)
Rhubarb (Rheum rhaponticum)
St. Baranaby's Thistle (Centaurea solstitialis)
St. John's Wort (Hypericum species)
Sandwort (Arenaria species)
Soapwort (Saponaria species)
Solomon's Seal (Polygonatum multiflorum)
Sorrel (Rumex acetosa)
Spindle (Euonymus europaeus)
Spurge Laurel (Daphne laureola)
Sun Spurge (Euphorbia helioscopia)
Thorn Apple (Datura straemonium)
Traveller's Joy (Clematis vitalba)
White Bryony (Bryonia dioica)
Wisteria (Wisteria species)
Wood Anemone (Anemone nemorosa)
Wood Sorrel (Oxalis acetosella)
Woody Nightshade (Solanum dulcamara)
Yellow Flag (Iris pseudacorus)
Yellow Star Thistle (Centaurea solstitialis)
Yew (Taxus baccata)
