Ezina · A Field Manual for Plant Care · United States Vol. I · Ed. 2027 · Proof copy

§ Toxic plants · Compositae · Checked Oct 2026

Is groundsels toxic to cats and dogs?

Yes. Groundsels (Senecio spp.) is toxic to cats and dogs, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Critical, level 4 of 4.

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Groundsels (Senecio spp.)
Photo: (c) Michelle, some rights reserved (CC BY), uploaded by Michelle, via iNaturalist

§ 010 · Signs

What to watch for

Signs include liver failure, weight loss, weakness, lethargy, yawning, wobbliness or poor coordination, jaundice (yellow gums or eyes), dullness or depression, loss of appetite, vomiting, diarrhea, drowsiness, pressing the head against walls, anemia (pale gums) and skin irritation. Signs can start within hours; some take a day or more to show.

§ 020 · If it happened

What to do if your pet ate it

Call your vet or a pet poison hotline straight away, even if your pet seems fine: the ASPCA Animal Poison Control Center, (888) 426-4435, or Pet Poison Helpline, (855) 764-7661. Both are open 24 hours and charge a fee. Have the plant or a photo of it to hand, and don’t make your pet vomit unless a vet tells you to.

§ 030 · Same family

Other Compositae plants toxic to pets

Groundsels belongs to the Compositae family. ASPCA lists these relatives too.

§ 040 · Questions

Questions about groundsels and pets

Is groundsels toxic to cats?

Yes. ASPCA lists groundsels as toxic to cats.

Is groundsels toxic to dogs?

Yes. ASPCA lists groundsels as toxic to dogs.

What happens if my pet eats groundsels?

Signs include liver failure, weight loss, weakness, lethargy, yawning, wobbliness or poor coordination, jaundice (yellow gums or eyes), dullness or depression, loss of appetite, vomiting, diarrhea, drowsiness, pressing the head against walls, anemia (pale gums) and skin irritation. Plant Smart rates it Critical, level 4 of 4.

What should I do if my pet ate it?

Call your vet or a pet poison hotline right away, even before signs appear: the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. Both charge a fee. Have the plant, or a photo of it, to hand.

Changes

5 Oct 2026: page drafted.

Sources

ASPCA Animal Poison Control Center: Toxic and Non-Toxic Plant List.

Plant Smart: Plant Smart: plants toxic to pets.

Photo: (c) Michelle, some rights reserved (CC BY), uploaded by Michelle, via iNaturalist, source.

Checked Oct 2026.