Anthurium [leaves < calcium oxalate], Azaleas [all parts < glycosides], Baneberry [seeds & leaves < alkaloids], Belladonna [young plant / seeds < alkaloids], bittersweet [all parts <  alkaloids], caladium [leaves < calcium oxalate], castor bean [seeds foliage < lectins], cherries [twigs & foliage < cyanide releasing compound], crocus [bulb < alkaloids], croton [all parts < oils, resins, alkaloids], crown-of-thorns [all parts <oils, resins, alkaloids], daffodil [bulbs < alkaloids], daphne [berries < mezerein & daphnin], delphinium [young plant/seeds < alkaloids], diffenbachia [leaves < calcium oxalate], foxglove [leaves/seeds/flowers < digitoxin], golden chain [seeds < alkaloids?],  hemlock [all parts < alkaloid], hyacinth [bulbs < glycosides], hydrangea [buds/leaves/branches < ?], indian hellebore [bulbs < alkaloids],  jack-in-the-pulpit [leaves <calcium oxalate], jasmine [berries <?], jimson weed [all parts < alkaloids], laburnum [seeds/leaves < alkaloids], lantana camara [green berries <?], larkspur [young plant/seeds < alkaloids], laurel [all parts <?], lily of the valley [leaves/flowers < glycosides], marsh marigold [seeds & leaves < alkaloids], mistletoe [all parts/berries <?], moonseed [fruits/seeds <?], monkshood [roots/all parts juice < alkaloids], morning glory [seeds <?], narcissus [bulbs <?], nightshade [unripe berries < solanine], oleander [leaves <?], philodendrons [leaves < calcium oxalate], poinsettia [all parts < oils, resins, alkaloids], pokeweed [all parts <?], poppy [all partts, no seeds < alkaloids], privet [berries/leaves <?], robinia [seeds/leaves < lectins], rhododendron [all parts < calcium oxalate], rhubarb [leaf blade <?], rosary pea [seeds/foliage <?], scotch broom [seeds/leaves < alkaloids], skunk cabbage [leaves < calcium oxalate], snow-on-the-mountain [all parts < oils, resins, alkaloids], star of Bethleem [bulbes < glycosides], sun spurge [all parts < oils, resins, alkaloids], tulips [bulbs < alkaloids], water hemlock [all parts <?], yellow jessamine [all parts <?], yew [berries/seeds < alkaloids].