17 Poisonous plants:

Lilies: Members of the Lilium spp. are considered to be highly toxic to cats. While the poisonous component has not yet been identified, it is clear that with even ingestions of very small amounts of the plant, severe kidney damage could result.

Marijuana: Ingestion of Cannabis sativa by companion animals can result in depression of the central nervous system and incoordination, as well as vomiting, diarrhea, drooling, increased heart rate, and even seizures and coma.

Sago Palm: All parts of Cycas Revoluta are poisonous, but the seeds or “nuts” contain the largest amount of toxin. The ingestion of just one or two seeds can result in very serious effects, which include vomiting, diarrhea, depression, seizures and liver failure.

Tulip/Narcissus bulbs: The bulb portions of Tulipa/Narcissus spp. contain toxins that can cause intense gastrointestinal irritation, drooling, loss of appetite, depression of the central nervous system, convulsions and cardiac abnormalities.

Azalea/Rhododendron: Members of the Rhododenron spp. contain substances known as grayantoxins, which can produce vomiting, drooling, diarrhea, weakness and depression of the central nervous system in animals. Severe azalea poisoning could ultimately lead to coma and death from cardiovascular collapse.

Oleander: All parts of Nerium oleander are considered to be toxic, as they contain cardiac glycosides that have the potential to cause serious effects—including gastrointestinal tract irritation, abnormal heart function, hypothermia and even death.

Castor Bean: The poisonous principle in Ricinus communis is ricin, a highly toxic protein that can produce severe abdominal pain, drooling, vomiting, diarrhea, excessive thirst, weakness and loss of appetite. Severe cases of poisoning can result in dehydration, muscle twitching, tremors, seizures, coma and death.

Cyclamen: Cylamen species contain cyclamine, but the highest concentration of this toxic component is typically located in the root portion of the plant. If consumed, Cylamen can produce significant gastrointestinal irritation, including intense vomiting. Fatalities have also been reported in some cases.

Kalanchoe: This plant contains components that can produce gastrointestinal irritation, as well as those that are toxic to the heart, and can seriously affect cardiac rhythm and rate.

Yew: Taxus spp. contains a toxic component known as taxine, which causes central nervous system effects such as trembling, incoordination, and difficulty breathing. It can also cause significant gastrointestinal irritation and cardiac failure, which can result in death.

Amaryllis: Common garden plants popular around Easter, Amaryllis species contain toxins that can cause vomiting, depression, diarrhea, abdominal pain, hypersalivation, anorexia and tremors.

Autumn Crocus: Ingestion of Colchicum autumnale by pets can result in oral irritation, bloody vomiting, diarrhea, shock, multi-organ damage and bone marrow suppression.

Chrysanthemum: These popular blooms are part of the Compositae family, which contain pyrethrins that may produce gastrointestinal upset, including drooling, vomiting and diarrhea, if eaten. In certain cases depression and loss of coordination may also develop if enough of any part of the plant is consumed.

English Ivy: Also called branching ivy, glacier ivy, needlepoint ivy, sweetheart ivy and California ivy, Hedera helix contains triterpenoid saponins that, should pets ingest, can result in vomiting, abdominal pain, hypersalivation and diarrhea.

Peace Lily: (AKA Mauna Loa Peace Lily) Spathiphyllum contains calcium oxalate crystals that can cause oral irritation, excessive drooling, vomiting, difficulty in swallowing and intense burning and irritation of the mouth, lips and tongue in pets who ingest.

Pothos: Pothos (both Scindapsus and Epipremnum) belongs to the Araceae family. If chewed or ingested, this popular household plant can cause significant mechanical irritation and swelling of the oral tissues and other parts of the gastrointestinal tract.

Schefflera: Schefflera and Brassaia actinophylla contain calcium oxalate crystals that can cause oral irritation, excessive drooling, vomiting, difficulty in swallowing and intense burning and irritation of the mouth, lips and tongue in pets who ingest.

Summer Care Tips for You and Your Pets

Summer is a time for both you and your pet to enjoy the sunshine and outdoors, but along with the fun, the season also offers up situations that can endanger your pet. By taking precautions, you can decrease the chance that disaster will happen. The HSUS offers these tips for pet owners to keep their furry friends safe this summer.

Never Leave Your Pet in the Car
In nice weather you may be tempted to take your pet with you in the car while you travel or do errands. But during warm weather, the inside of your car can reach 120 degrees in a matter of minutes, even if you're parked in the shade. This can mean real trouble for your companion animals left in the car.

Dogs and cats can't perspire and can only dispel heat by panting and through the pads of their feet. Pets who are left in hot cars even briefly can suffer from heat exhaustion, heat stroke, brain damage, and can even die. Don't think that just because you'll be gone "just a minute" that your pet will be safe while you're gone; even an air-conditioned car with the motor off isn't healthy for your pet.

To avoid any chance that your pet will succumb to the heat of a car this summer, be sure to play it safe by leaving your pet cool and refreshed at home while you're on the road. And if you do happen to see a pet in a car alone during the hot summer months, alert the management of the store where the car is parked. If the owner does not return promptly, call local animal control or the police department immediately.

Don't Put Your Pet In the Back of a Truck
It is very dangerous, and in some states illegal, to drive with a dog in the back of a pick-up truck. Not only can flying debris cause serious injury, but a dog may be unintentionally thrown into traffic if the driver suddenly hits the brakes, swerves, or is hit by another car. Dogs should ride either in the cab (in a crate or wearing a seat belt harness designed for dogs) or in a secured crate in the bed of the truck.

Watch Out For Fertilizers and Deadly Plants
Summer is often a time when people fertilize their lawns and work in their gardens. But beware: Plant food, fertilizer, and insecticides can be fatal if your pet ingests them. In addition, can produce physiologically active or toxic substances in sufficient amounts to cause harmful effects in animals.

Stay Bite-Free
With people and dogs spending more time outside, dog bites are likely to increase in the summer months. Spaying or neutering your dog reduces the likelihood that he will bite and provides many other health benefits.

Pet Care 101
Make sure your pet is always wearing a collar and identification tag. If you are separated from your pet, an ID tag may very well be his or her ticket home.

Check with your veterinarian to see if your pets should be taking heartworm prevention medication. Heartworm disease, which is transmitted by mosquitoes, can be fatal in both dogs and cats. Another summertime threat is fleas and ticks. Use only flea and tick treatments recommended by your veterinarian. Some over-the-counter flea and tick products can be toxic, even when used according to instructions.

Water Wisdom
Pets and pools can equal disaster. Prevent free access to pools and always supervise a pet in a pool. Provide plenty of water and shade for your pets while they're enjoying the great outdoors so they can stay cool.
Travel Tips
If you plan on traveling with your pet during the summer, take the time to prepare for your furry friends in advance. Many airlines have summer pet embargoes, and most trains and ships do not allow pets other than service animals. The HSUS has information on traveling with your pet that may make the difference between a pleasant trip and a vacation nightmare.

If You Can't Stand the Heat...
Pets need exercise even when it is hot, but extra care needs to be taken with older dogs, short-nosed dogs, and those with thick coats. On very hot days, limit exercise to early morning or evening hours. Keep in mind that asphalt gets very hot and can burn your pet's paws. Pets can get sunburned too, and your pet may require sunscreen on his or her nose and ear tips. Pets with light-colored noses or light-colored fur on their ears are particularly vulnerable to sunburn and skin cancer.

Your pet can suffer from heat exhaustion and heat stroke. These conditions are very serious and could cause your pet to die. You should be aware of the signs of heat stress, which could include heavy panting, glazed eyes, a rapid pulse, unsteadiness, a staggering gait, vomiting, or a deep red or purple tongue.

If your pet does become overheated, you need to immediately lower his body temperature. Move your pet into the shade and apply cool (not cold) water over his body to gradually lower his core body temperature. Apply cold towels or ice packs to your pet's head, neck, and chest only. Let your pet drink small amounts of water or lick ice cubes. Most importantly, get him to a veterinarian immediately.

Play It Safe on the 4th
Don't take your pets to crowded summer events such as concerts or fairs. The loud noises and crowds, combined with the heat, can be stressful and dangerous for pets. For your pet's well being, leave her at home. Be especially aware of these threats during holidays, such as the Fourth of July.