| Azaleas |
All parts are fatal |
| Buttercup |
All parts poisonous |
| Calla Lilly |
All parts poisonous |
| Cherries |
Twigs and foliage are fatal |
| Christmas Berry |
Berries are poisonous |
| Crocus |
All bulbs |
| Daffodil |
Bulbs may be fatal |
| Holly |
Leaves and berries |
| Jasmine |
Berries are fatal |
| Laurels |
All parts are fatal |
| Mistletoe |
Berries are fatal |
| Poinsettia |
Leaves and sap are fatal |
| Red Sage |
Green berries are fatal |
| Redwood |
Chips are poisonous to aquatic animals |
| Rhododendron |
All parts are fatal |
| Rhubarb |
Leaves and leaf blade are fatal; only the stems are cooked for human consumption |
| Tiger Lily |
All parts poisonous |
| Tulip |
Bulbs are poisonous | | |
