American Mistletoe — (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas Goldman
Photo by (c) Douglas Goldman, some rights reserved (CC BY-SA), uploaded by Douglas GoldmaniNaturalistCC BY-SA
Pet safety reference

American Mistletoe

Phoradendron flavescens

American Mistletoe is a hemiparasitic shrub often used in holiday decor that contains compounds capable of causing significant gastrointestinal and cardiovascular distress if ingested. Due to the potential for serious health complications, it should be kept strictly out of reach of all pets.

American MistletoeOak MistletoePhoradendron flavescensPhoradendron leucarpum
Light
Bright indirect light
Habit
Parasitic shrub
Care
High (requires host plant)

Safety status

Cats & Dogs

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.

Catsconcern notes

Common signs

Drooling, vomiting, diarrhea, abdominal pain, and in severe cases, low blood pressure or slowed heart rate.

Escalation note

Ingestion can lead to significant clinical signs; please contact your veterinarian or a pet poison control center immediately if you suspect your cat has consumed any part of this plant.

Dogsconcern notes

Common signs

Vomiting, diarrhea, lethargy, drooling, and potential cardiovascular changes such as bradycardia or hypotension.

Escalation note

The berries and leaves are considered toxic; seek veterinary attention promptly if ingestion occurs to manage symptoms and prevent complications.

Safer alternatives

No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.

Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

American Mistletoe is listed as toxic to both cats and dogs, causing gastrointestinal and cardiovascular symptoms.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Phoradendron leucarpum, commonly known as American Mistletoe, is a parasitic plant that is toxic if ingested.

cats safety pageMy cat ate American Mistletoedogs safety pageMy dog ate American Mistletoe

Same safety verdict

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