There is a list of SAFE foods under this list.
Agave (leaves)
Amaryllis (bulbs)
Apple (seeds)
Azalea
Bird of Paradise (seeds)
Bloodroot
Buttercup (leaves)
Black Locust (seeds)
Boxwood (leaves/twigs)
Buckeye (seeds)
Buckthorn (berries)
Caladium
Calla (rhizome)
Castor Bean (seed)
Christmas Rose
Cone Flower
Crown of Thorns
Daffodil
Daphne
Delphinium
Dumbcane (Dieffenbachia)
Eggplant (plant)
Elderberry (unripe berries)
Elephant Ear
Flowering Tobacco
Foxglove
Holly (berries)
Horsechestnut (nuts)
Hyacinth
Iris
Ivy, Boston & English (berries)
Jack-in-the-Pulpit
Jerusalem Cherry
Jimson Weed
Jonquil
Lantana
Larkspur
Lily-of-the-Valley
Lupine
Mayapple
Mistletoe (berries)
Morning Glory (seeds)
Mustard (root)
Narcissus
Nicotiana
Nightshade
Oleander
Philodendron
Poison Hemlock
Poison Ivy
Potato (green)
Privet (berries)
Ranunculus
Rhododendron
Rhubarb (leaf blade)
Rosary Pea (seed)
Snow-on-the-Mountain
Sweet Pea (seeds)
Sweet Potato
Skunk Cabbage
Tansy
Tomato (leaves)
Tulip
Virginia Creeper (berries)
Water Hemlock
Wisteria (seeds/pods)
Yew (berries)
SAFE food for rabbits.
Vegetables:
Alfalfa sprouts
Basil
Beet greens (tops) *
Bok choy
Broccoli (mostly leaves/stems) *
Brussels sprouts
Cabbage leaves (outer)
Carrot *
Carrot tops *
Celery
Cilantro
Clover
Clover sprouts Collard greens*
Dandelion greens and flowers (no pesticides) *
Endive *
Escarole
Green peppers
Kale (!) *
Mint
Mustard greens *
Parsley *
Pea pods (the flat, edible kind) *
Peppermint leaves
Raddichio
Radish tops
Radish sprouts
Raspberry leaves
Romaine lettuce (no iceberg or light colored leaves *
Spinach (!) *
Swiss chard
Watercress *
(!) Use sparingly. High in oxalates or goitrogens and may be toxic in accumulated quantities over a period of time
Fruits (as treats only):
Apple
Blueberries
Cactus fruit
Melon
Mango
Orange (the peel, too!)
Papaya
Peach
Pear
Pineapple
Plums
Persimmon
Raspberries
Strawberries
Tomato
Banana (Can be "addicting"; use only occassionally)
Dried fruits can be used
Raisins (Watch out for sugar!)
Grapes
Compiled by the University of Illinois' College of Agricultural, Consumer and Environmental Sciences. Reprinted with permission. Copyright 1995 by the Board of Trustees of the University of Illinois.
Safe foods list from Bunnymom5's Rabbit Care Guide