I know apple type tree limbs and weeping willows are ok, but what other kind of tree limbs and leaves are OK for rabbits to munch on?

You'll find many safe trees listed in our SAFE PLANTS sticky:

safe-plants-for-rabbits-list-t55.html

Some trees I have local (like in my yard) that are not mentioned on the Safe Plants List are:

pecan (Carya illinoinensis)
oak
dogwood (Cornus florida)
wild black cherry (Prunus serotina)

(I live in coastal southeast NC if that helps)

Are these safe for rabbits?

I just read that stone fruits (plums, peaches, nectarines, etc.) are not safe for bunnies. I think I need to buy more apple trees!

The stone fruits are generally listed as dangerous due to the naturally occurring Cyanide within the seed itself-- and I know of few animals that can break through the 'stone' to get to the seed.. Apple seeds have the same natural cyanide-- and are not digested if ingested. I have seen intact apple seeds in the droppings of horses, cows, and sheep--- we tend to not worry about apple seeds ourselves, well, they ARE a bit like unpopped corn kernels-- hard as rocks and painful to chew on!

I don't know much about some of these. Pecan may be useable... you'll have to do some research.

Some people say oak is okay... Others say no. No personal experience with it and it may depend on what kind of oak.

Wild black cherry bark is a strong medicinal. As stone fruit trees are generally considered toxic, I would definitely not feed black cherry.

The problem here, of course, is that living so much further north, we have different trees and shrubs for the most part. Maybe someone down your way can help more.

Oh, the dogwooods (Cornus) can make a beautiful jelly from the fruit-- dont know how the twigs and branches are for rabbits-- I haven;t seen any groundhogs or rabbits tall enough to eat them--

Good point about the wild black cherry being a strong medicinal. I plan to use it for human medicinal purposes since the wild birds graciously planted them for me.

I found the following list of safe and unsafe tree woods Safe woods (I've added notes on the side as pertains to my original question and thoughts about my yard/area):

apple
arbutus
ash
aspen
bamboo --> I can forage for this
blackberrry
blackcurrant
cholla
cottonwood
crabapple
dogwood --> have in my yard
elm
grapevine --> will be growing muscadine grapes but that is a different plant so...more research
hawthorn
hazelnut --> one recently planted in my yard and one across the street
kiwi --> will be growing hardy kiwi...
magnolia
manzanita
mulberry --> can forage for it
pear --> when I forage pears off neighbors' trees that they don't want I'll remember to gather some branches
pecan --> happy happy -- something to do with all my pecan branches!
pine - kiln-dried white
poplar
quince
rose hip -- will have plenty of these
sycamore
willow (but not white willow) --> Have Carolina Willow growing in my ditch...

Toxic Woods

almond
apricot
beech
birch
black locust
black lotus
blackwood
box elder
buckthorn
cashew
cedar
cherry
chesnut
china berry Chinese snake tree chokeberry
citrus woods - orange, lemon, grapefruit, etc.
cypress
ebony
elderberry
eucalyptus
fir
ginkgo
hemlock
holly --> have these, figured they were toxic...
honey locust
hydrangea --> have these, noted...
juniper
kumquat
laurel
mahogany
mango
manufactured/glued woods like plywood or fiberboard
maple
mesquite
myrtle --> have these, noted
nectarine
oak --> bummer
oleander --> unfortunately, have one...these are HIGHLY TOXIC
peach
pine - fresh, pressure treated, red -- kiln dried is thought to be safe
pinecones
pistachio
plum
redwood
sandalwood
sequoia
spruce
teak
walnut
weeping fig
white willow
yew

Pretty good list. Just would like to note that according to this paper from the World Rabbit Science, white willow (Salix alba) is fine for rabbits.

http://world-rabbit-science.com/WRSA-Pr ... -Rizzi.pdf

My rabbits are kind of indifferent to willow leaves but they love chewing on twigs and branches. White willow contains a natural form of aspirin which is a blood thinner but unless you feed it in huge quantities it does no harm and possibly some good.