I know we have a foods toxic post, but I didn't see any plants on it.  I just caught Tinkerbelle munching on poison ivy.  She didn't eat a lot, but I think she thought it was some grass weed and she seems to be wanting to eat grass this morning.  She went back behind my bushes and found a little green patch and started munching.  She's fine now, but I'm wondering if I should be worried.

http://www.dogpack.com/health/poisonplants.htm  plants by category (bulb, etc.)

http://www.aspca.org/site/PageServer?pagename=pro_apcc_toxicplants  alpha list...link is great because you can click on the plant and get the symptoms.

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [V] [W] [Y] A - Aloe - Amaryllis - Andromeda Japonica - Asian Lily (Liliaceae) - Asparagus Fern - Australian Nut - Autumn Crocus - Avocado - Azalea B - Bird of Paradise - American Bittersweet - European Bittersweet - Branching Ivy - Buckeye - Buddist Pine C - Caladium - Calla Lily - Castor Bean - Ceriman (aka Cutleaf Philodendron) - Charming Diffenbachia - Chinaberry Tree - Chinese Evergreen - Christmas Rose - Clematis - Cordatum - Corn Plant (aka Cornstalk Plant) - Cornstalk Plant (aka Corn Plant) - Cutleaf Philodendron (aka Ceriman) - Cycads - Cyclamen D - Daffodil - Day Lily - Devil's Ivy - Dumb Cane - Deadly Nightshade (See Nightshade) E - Easter Lily - Elephant Ears - Emerald Feather (aka Emerald Fern) - Emerald Fern (aka Emerald Feather) - English Ivy F - Fiddle-Leaf Philodendron - Flamingo Plant - Florida Beauty - Foxglove - Fruit Salad Plant G - Glacier Ivy - Gladiolas - Glory Lily - Gold Dieffenbachia - Gold Dust Dracaena - Golden Pothos - Green Gold Nephthysis H - Hahn's self branching English Ivy - Heartleaf Philodendron - Heavenly Bamboo - Holly - Horsehead Philodendron - Hurricane Plant - Hyacinth - Hydrangea I - Iris J - Japanese Show Lily - Japanese Yew (aka Yew) - Jerusalem Cherry Back to Top   K - Kalanchoe L - Lace Fern - Lacy Tree - Lily of the Valley M - Macadamia Nut - Madagascar Dragon Tree - Marble Queen - Marijuana - Mauna Loa Peace Lily (aka Peace Lily) - Mexican Breadfruit - Mistletoe "American" - Morning Glory - Mother-in-Law N - Narcissus - Needlepoint Ivy - Nephthytis - Nightshade O - Oleander - Onion - Orange Day Lily P - Panda - Peace Lily (aka Mauna Loa Peace Lily) - Philodendron Pertusum - Plumosa Fern - Precatory Bean Q - Queensland Nut R - Red Emerald - Red Lily - Red-Margined Dracaena (aka Straight-Margined Dracaena) - Red Princess - Rhododendron - Ribbon Plant (Dracaena sanderiana) - Rubrum Lily S - Saddle Leaf Philodendron - Sago Palm - Satin Pothos - Schefflera - Spotted Dumb Cane - Stargazer Lily - Striped Dracaena - Sweetheart Ivy - Swiss Cheese Plant T - Taro Vine - Tiger Lily - Tomato Plant - Tree Philodendron - Tropic Snow Dumbcane - Tulip V - Variable Dieffenbachia - Variegated Philodendron W - Warneckei Dracaena - Wood Lily Y - Yesterday, Today, Tomorrow - Yew (aka Japanese Yew) - Yucca Back to Top

All I can find is that poison ivy is toxic to humans if eaten....you may want to call poison control or your vet.  They can tell you what to do for it. 

From Pet Education: http://www.peteducation.com/article.cfm?cls=2&cat=1684&articleid=1553

If you think your pet has chewed on or eaten one of these plants, please contact your veterinarian, animal emergency clinic, or the poison control center for advice. The ASPCA National Animal Poison Control Center hotline numbers are as follows:

• 1-900-443-0000 ($55.00 per case). The charge is billed directly to the caller's phone.

• 1-888-4ANI-HELP or 1-888-426-4435 ($55.00 per case). The charge is billed to caller's credit card only

A-B

Aloe Vera
Amaryllis
Apple (seeds)
Apricot (pit)
Arrowhead
Asparagus Fern
Avocado
Autumn Crocus
Azalea

Baneberry
Begonia
Bird of Paradise
Black Locust
Black Walnut
Bleeding Heart
Boston Ivy

C

Caladium
California Poppy
Calla Lily
Carnation
Castor Bean
Ceriman
Cherry (seeds, wilting leaves, and pit)
Chinese Evergreen
Chives
Christmas Rose
Chrysanthemum
Clematis
Corn Plant
Crocus
Croton
Crown of Thorns
Crown Vetch
Cyclamen

D-F

Daffodil
Delphinium
Devil's Ivy
Dicentra
Dieffenbachia
Donkey Tail
Dumb Cane
Dutchman's Breeches

Easter Lily
Elderberry
Elephant Ears
English Ivy
Eucalyptus

Fiddle-leaf Fig
Florida Beauty
Four O'Clock
Foxglove
Foxtail
Fruit Salad Plant

G-I

German Ivy
Gladiola

Hemlock
Holly
Honeysuckle
Hurricane Plant
Hyacinth
Hydrangea

Iris
Ivy

J-L

Jack in the Pulpit
Japanese Yew
Jerusalem Cherry
Jimson Weed
Jonquil

Kalanchoe

Lamb's quarter
Lantana
Larkspur
Laurel
Lily
Lily of the Valley
Lobelia
Locoweed
Lords-and-Ladies
Lupine

M-N

Marigold (Marsh Marigold)
Marijuana
Mayapple
Mexican Breadfruit
Milkweed
Mistletoe
Monkshood
Morning Glory
Mother-in-Law plant
Mother-in-Law's Tongue
Mountain Laurel
Mushrooms

Narcissus
Nephthytis
Nightshade

O-P

Oak Tree (buds and acorns)
Oleander
Onion

Peace Lily
Peach (wilting leaves and pits)
Pencil Tree
Philodendron
Pigweed
Poinsettia
Poison Ivy
Poison Hemlock
Poison Oak
Poison Sumac
Poppy
Potato (all green parts)
Pothos
Precatory Bean

Q-S

Rhododendron
Rhubarb
Ribbon Cactus
Rubber Tree

Sago Palm
Schefflera
Shamrock Plant
Snake Plant
Snow on the Mountain
Sorghum
Star of Bethlehem
Stinging Nettle
Stinkweed
Swiss Cheese Plant

T-V

Taro Vine
Toadstools
Tobacco
Tomato Plant (entire plant except ripe fruit)

Umbrella Tree

W-Z

Water Hemlock
Weeping Fig
Wisteria

Yew

I have a number of these plants in my yard.  Oleanders are extremely toxic to dogs, but  I had 52 oleanders around my back yard when we lived on Galveston Island.  Never had a problem in the 15 years we lived there.  The thing about toxic plants is "Does your dog tend to EAT plant leaves?".  Most plants on the list won't bother a dog unless ingested in large amounts.  I know my oleanders dropped leaves & blossoms all over our back yard but my three dachshunds never got sick because they didn't eat [them.  Some dogs are inclined to eat everything green they encounter and others don't mess with plants much at all.  Now puppies, who eat everything they get around, I'd watch a lot closer.  But after one year of age, many "so-called" toxic plants won't bother your dog at all in your yard.   YOU know your dog better than anyone else.  If they  "like to eat plants" vigorously and constantly, I'd definitely get rid of the toxic ones.   But otherwise, I wouldn't rush out & uproot everything you have on the list.

I have a Croton right on my patio and my two ratties don't even notice it.  I have 6 Asparagus ferns potted out there and even Button who stands up on those planters rubbing it all over her belly side,  has never had any problems.  Now Zipper kept eating my ground cover periwinkle, which is on the toxic list.  And although she never had a problem, I went ahead and uprooted it because she was persistently eating it and obviously perceived it as food.  Button never did so.  So each dog, each home setting must be handled as the owner deems appropriate.

As in all things, exercise caution at first and observe your dogs before you denude your landscape. 

EDIT: Wonder why the bottom half of my post is all underlined and red when I only highlighted one short phrase! to be red.  Strange.