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Is Bristly Greenbrier toxic to cats?

NO (NON-TOXIC)
Good news, Bristly Greenbrier is a cat safe plant! While this plant is non-toxic, it may still irritate your cat's tummy and potentially cause vomitting or diarrhea if ingested.
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Additional Names:Hagbrier, Hellfetter
Scientific Name:Smilax hispida
Family:Liliaceae
Detailed Write-up
Author:
Alec
Last Updated:
7/13/25

Is Bristly Greenbrier Toxic to Cats?

Cats are curious and playful pets that love to explore their surroundings. However, this natural curiosity can sometimes get them into trouble. Being natural predators, they may come across plants that are toxic to them. As pet owners, we must be aware of the plants that are safe for our cats and those that are not. One such plant is the bristly greenbrier. In this article, we will explore whether bristly greenbrier is toxic to cats or not.

The Bristly Greenbrier Plant

Bristly greenbrier, also known by its scientific name Smilax tamnoides, is a woody vine that is native to the eastern part of the United States. It belongs to the Smilacaceae family and is also known as catbrier, bullbrier, or horsebrier. The plant grows best in wetlands, swamps, and along riverbeds.

Bristly greenbrier is a thorny plant that can grow up to 50 feet in length. It has shiny green leaves that are five inches long and one inch wide. The leaves have a pointed edge and are arranged alternately on the stem. The plant also has small white flowers that bloom in the spring and black berries that ripen in the fall.

Is Bristly Greenbrier Toxic to Cats?

There is no research that suggests that bristly greenbrier is toxic to cats. The plant has not been specifically listed as toxic to cats by the ASPCA (American Society for the Prevention of Cruelty to Animals). However, this does not mean that bristly greenbrier is entirely safe for your feline friend.

The thorns of the bristly greenbrier plant can injure your cat's mouth, throat, and paws if they come into contact with them. These injuries can become infected, leading to severe health complications. Therefore, it is essential to keep your cat away from the plant or remove it from your yard altogether if you have one.

What Happens if Your Cat Eats Bristly Greenbrier?

If your cat eats bristly greenbrier, it is unlikely to suffer from toxicity. However, they may experience some mild digestive upset, such as vomiting or diarrhea. These symptoms are usually self-limiting and do not require any specific treatment.

However, if your cat has ingested any part of an unknown plant, it is essential to contact your veterinarian immediately. They can identify the plant and assess any potential risks to your cat's health. Your veterinarian may advise monitoring your cat for any unusual signs or symptoms or conducting further tests, such as bloodwork or imaging, to rule out any underlying conditions.

Other Plants Toxic to Cats

While bristly greenbrier may not be toxic to cats, several other plants are. Here are some common plants that are toxic to cats:

  • Lilies
  • Tulips
  • Daffodils
  • Chrysanthemums
  • Hydrangeas
  • Azaleas
  • Rhododendrons
  • Poinsettias
  • Ivy

If you have any of these plants in or around your home, ensure that they are out of your cat's reach or remove them entirely. If you suspect that your cat has ingested any of these plants, contact your veterinarian immediately.

Conclusion

Bristly greenbrier is unlikely to be toxic to your cat if ingested. However, its thorny nature can cause injuries to your cat's mouth, throat, and paws. If you have a bristly greenbrier plant in your home or garden, it is essential to keep your cat away from it. If your cat ingests any plant, including bristly greenbrier or any of the plants listed above, contact your veterinarian immediately. Remember, prevention is the best way to protect your cat's health.

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