Ok how about talking about a comprehensive list
Here is an article in the book that the founder of BYC wrote:
http://www.dummies.com/how-to/content/plants-that-are-poisonous-to-chickens.html
Plants That Are Poisonous to Chickens
By
Bonnie Jo Manion and
Robert T. Ludlow from
Gardening with Free-Range Chickens For Dummies
When you’re free-ranging chickens, acquaint yourself with the more common ornamentals and edibles that are mildly toxic to poisonous to chickens. You’ll find a variety of plants that have toxic or poisonous qualities for chickens.
Always err on the side of caution; if you suspect a plant is poisonous to your chickens, rid it from your garden. Many plants have toxic properties that act as a type of innate defense to help the plants to survive.
Poisonous ornamental plants
Even though many ornamental plants are mildly toxic or poisonous to chickens, they’re highly unlikely to eat these plants while free-ranging. While sheep, goats, and other
livestock animals will eat toxic plants,
chickens rarely do.
When chickens eat something poisonous, it’s usually because someone unintentionally fed them something poisonous or underfed them while they were confined and exposed to something poisonous.
The following are some of the more common ornamental plants potentially toxic, yet unlikely that chickens would freely eat these.
- Azalea: Rhododendron spp.
- Boxwood: Buxus spp.
- Buttercup family: Ranunculaceae. This family includes anemone, clematis, delphinium, and ranunculus.
- Cherry laurel: Prunus laurocerasus.
- Daffodil: Narcissus spp.
- Daphne: Daphne spp.
- Foxglove: Digitalis spp.
- Honeysuckle: Lonicera spp.
- Hydrangea: Hydrangea spp.
- Ivy: Hedera spp.
- Jasmine: Jasminum spp.
- Lantana: Lantana spp.
- Lily of the valley: Convallaria majalis.
- Mexican poppy: Argemone mexicana
- Monkshood: Aconitum napellus.
- Mountain laurel: Kalmia latifolia.
- Oleander: Nerium oleander.
- Rhododendron: Rhododendron spp.
- Sweet pea: Lathyrus spp.
- Tobacco: Nicotiana spp.
- Tulip: Tulipa
- Wisteria: Wisteria spp.
- Yew: Taxus spp.
Poisonous edible plants
The following list contains suggestions for edibles to avoid with hand-feeding and free-ranging chickens:
- Avocado skin and pits contain persin, which is toxic to chickens.
- Avoid citrus juice and skins.
- Don’t give chickens any edible containing salt, sugar, coffee, or liquor.
- Uncooked raw or dried beans contain hemaglutin, which is poisonous to chickens.
- Raw green potato skins contain solanine, which is poisonous to chickens.
- Onions are a poor food to give to chickens because onions flavor eggs. Large quantities of onions can be harmful to chickens, affecting their red blood cells, causing hemolytic anemia or Heinz anemia.
- Avoid feeding or free-ranging chickens specific unshelled nuts of walnuts (Juglans spp.), black walnuts (Juglans nigrs), hazelnuts (Corylus), and pecans (Carya illinoinensis).
- Don’t give your chickens leaves of rhubarb, potato, or tomato plants.
Deadly poisonous plants found in pastures
These plants are not only extremely poisonous to poultry, but also to many other types of livestock and humans. This is not an inclusive list, and be aware that these plants can be found in other areas besides pastures, such as meadows, wilderness areas, and sometimes in gardens as volunteers. These are the types of plants you absolutely should never expose your chickens to:
- Black locust: Robinia pseudoacacia.
- Bladderpod: Glottidium vasicarium.
- Death Camas: Zigadenus spp.
- Castor bean: Ricinus communis.
- European black nightshade: Solanum nigrum.
- Corn cockle: Agrostemma githago.
- Horsenettle: Datura stramonium.
- Milkweed: Asclepias tuberosa. And other varieties.
- Mushrooms: Amanita spp. Death Cap, Destroying Angel, Panther Cap. Extremely deadly and poisonous if ingested.
- Jimsonweed: Datura stramonium.
- Poison hemlock: Conium maculatum.
- Pokeberry: Phytolacca americana.
- Rosary pea: Arbus precatorius.
- Water Hemlock: Cicuta spp.
- White snakeroot: Ageratina altissima.
Here is a list from right here on BYC:
https://www.backyardchickens.com/t/627282/comprehensive-list-of-poisonous-plants-and-trees
ARUM LILY
AMARYLLIS
ARALIA
ARROWHEAD VINE
AUTUMN CROCUS
AUSTRALIAN FLAMETREE
AUSTRALIAN UMBRELLA TREE
AVOCADO
AZALEA
BANEBERRY
BEANS: (CASTOR, HORSE, FAVA, BROAD, GLORY, SCARLET RUNNER,
MESCAL, NAVY, PREGATORY)
BIRD OF PARADISE
BISHOP'S WEED
BLACK LAUREL
BLACK LOCUST
BLEEDING HEART OR DUTCHMAN'S BREECHES
BLOODROOT
BLUEBONNET
BLUEGREEN ALGAE
BOXWOOD
BRACKEN FERN
BUCKTHORN
BULB FLOWERS: (AMARYLLIS, DAFFODIL, NARCISSUS, HYACINTH & IRIS)
BURDOCK
BUTTERCUP
CACAO
CAMEL BUSH
CASTOR BEAN
CALADIUM
CANA LILY
CARDINAL FLOWER
CHALICE (TRUMPET VINE)
CHERRY TREE
CHINA BERRY TREE
CHRISTMAS CANDLE
CLEMATIS (VIRGINIA BOWER)
CLIVIA
COCKLEBUR
COFFEE (SENNA)
COFFEE BEAN (RATTLEBUSH, RATTLE BOX & COFFEEWEED)
CORAL PLANT
CORIANDER
CORNCOCKLE
COYOTILLO
COWSLIP
CUTLEAF PHILODENDRON
DAFFODIL
DAPHNE
DATURA STRAMONIUM (ANGEL'S TRUMPET)
DEATH CAMUS
DELPHINIUM
DEVIL'S IVY
DIEFFENBACHIA (DUMB CANE)
ELDERBERRY
ELEPHANT EAR (TARO)
ENGLISH IVY
ERGOT
EUCALYPTUS (DRIED, DYED OR TREATED IN FLORAL ARRANGEMENTS)
EUONYMUS (SPINDLE TREE)
EUPHORBIA CACTUS
FALSE HELLEBORE
FLAME TREE
FELT PLANT (MATERNITY, AIR & PANDA PLANTS)
FIG (WEEPING)
FIRE THORN
FLAMINGO FLOWER
FOUR O'CLOCK
FOXGLOVE
GLOTTIDIUM
GOLDEN CHAIN
GRASS: (JOHNSON, SORGHUM, SUDAN & BROOM CORN)
GROUND CHERRY
HEATHS: (KALMIA, LEUCOTHO, PEIRES, RHODODENDRON, MTN. LAUREL,
BLACK LAUREL, ANDROMEDA & AZALEA)
HELIOTROPE
HEMLOCK: (POISON & WATER)
HENBANE
HOLLY
HONEYSUCKLE
HORSE CHESTNUT
HORSE TAIL
HOYA
HYACINTH
HYDRANGEA
IRIS IVY: (ENGLISH & OTHERS)
JACK-IN-THE-PULPIT
JASMINE (JESSAMINE)
JERUSALEM CHERRY
JIMSONWEED
JUNIPER
KY. COFFEE TREE
LANTANA (RED SAGE)
LARKSPUR
LILY OF THE VALLEY
LILY, ARUM
LOBELIA
LOCOWEED (MILK VETCH)
LOCUSTS, BLACK / HONEY
LORDS & LADIES (CUCKOOPINT)
LUPINE
MALANGA
MARIJUANA (HEMP)
MAYAPPLE (MANDRAKE)
MEXICAN BREADFRUIT
MEXICAN POPPY
MILKWEED, COTTON BUSH
MISTLETOE
MOCK ORANGE
MONKSHOOD
MOONSEED
MORNING GLORY
MTN. LAUREL
MUSHROOMS, AMANITA
MYRTLE
NARCISSUS
NETTLES
NIGHTSHADES: (DEADLY, BLACK, GARDEN, WOODY, BITTERSWEET,
EGGPLANT, JERUSALEM CHERRY)
OAK
OLEANDER
OXALIS
PARSLEY
PEACE LILY
PERIWINKLE
PHILODENDRONS: (SPLIT LEAF, SWISS CHEESE, HEART-LEAF)
PIGWEED
POINCIANA
POINSETTIA
POISON IVY
POISON HEMLOCK
POISON OAK: (WESTERN & EASTERN)
POKEWEED
POTATO SHOOTS
POTHOS
PRIVET
PYRACANTHA
RAIN TREE
RANUNCULUS, BUTTERCUP
RAPE
RATTLEBOX, CROTALARIA
RED MAPLE
RED SAGE (LANTANA)
RHUBARB LEAVES
RHODODENDRONS
ROSARY PEA SEEDS
SAND BOX TREE
SKUNK CABBAGE
SORREL (DOCK)
SNOW DROP
SPURGES: (PENCIL TREE, SNOW-ON-MTN, CANDELABRA, CROWN OF THORNS)
STAR OF BETHLEHEM
SWEET PEA
SWISS CHEESE PLANT (MONSTERA)
TANSY RAGWORT
TOBACCO
UMBRELLA PLANT
VETCH: HAIRY/COMMON
VIRGINIA CREEPER
WATTLE
WEEPING FIG
WHITE CEDAR, CHINA BERRY
WISTERIA
YEWS
YELLOW JASMINE
and Here:
another great discussion on poisonous plants
https://www.backyardchickens.com/t/29111/poisonous-plants
I for instance have Loco Weed on my property. It looks like pea pods with a papery shell. pretty plant. but Toxic to livestock.... Even if they eat a whole plant it may only cause them diarrhea... If they are starved ant this is the only plant available horses cows and sheep will eat it excluseively Loco Weed causes irreversable damage to their liver and brain. they have to be put down because they are a danger to themselves and us caregivers.
http://aces.nmsu.edu/pubs/_b/B713/welcome.html
As an amateur herbal enthusiast my property is covered with medicinals.... I read read read.... I read on the internet and wont take info as gospel till i hear it from several sources. Even if I could identify a medicinal herb I would never partake of it because there is a science to dosage and use just as in Pharmacology. Many medicinals are toxic to some degree.
For instance Apples specifically their pits. "They
contain amygdalin, a substance that releases cyanide when it comes into contact with human digestive enzymes." from the following article:
http://www.healthline.com/health/food-nutrition/are-apple-seeds-poisonous#AppleSeedOil4
The conclusion is the amount ingested is far away from being enough to cause issues. If you are concerned err on the side of caution...
By the way Peach Apricot and many Drupes have the same chemical amygdalin. we dont eat the pits because the meat is bitter....
Almond is also a Drupe.... with inedible fruit.
some other unexpected drupes are
Walnut
Pecan
Hazel nut
Mango
There are also sites MERK is one
http://www.merckvetmanual.com/mvm/toxicology/poisonous_plants/houseplants_and_ornamentals.html
they offer a spread sheet on Range plants as well.,
http://www.merckvetmanual.com/mvm/t.../range_plants_of_temperate_north_america.html
But PLEASE everyone dont take my word for it or any one single person for that matter.... do your own research.... within your own sphere of habitat. Most animals have excellent taste receptors and listen to them. Chickens are one of them.
I have done the research for my area of the Sonoran Desert Yep San Diego County has a portion of that desert.
deb "Yes I am aware that Parsley and Cilantro are on the second list"