Plant safety · Deadly

Is English Yew Poisonous to Alpacas?

English Yew (Taxus baccata) — a tree / shrub. Here is what alpaca owners need to know.

☠

Yes — English yew is highly poisonous. Small amounts can kill.

Keep alpacas completely away from this plant, including clippings and fallen leaves.

English Yew (Taxus baccata)
English Yew (Taxus baccata). Photo: Sitomon, CC BY-SA 2.0 via Wikimedia Commons.
Status
Deadly
Scientific name
Taxus baccata
Family
Taxaceae
Plant type
Tree / shrub
Also known as
Common yew, European yew, European Yew, Common Yew, yew
Toxic parts
All parts except the fleshy red aril; needles and seeds are the most toxic, and clippings stay toxic when dried
Toxic compound
Taxine alkaloids (block cardiac sodium and calcium channels)

Why it matters

Yew is the single most common cause of fatal plant poisoning in pet livestock. As little as a few mouthfuls of needles can kill an adult alpaca. Never throw hedge trimmings over the fence and remove any yew within neck reach of a paddock.

Signs of English yew poisoning in alpacas

  • Sudden death (often the first sign)
  • Slow, irregular or very fast heartbeat
  • Weakness, trembling, collapse
  • Diarrhea and colic
  • Cold extremities
  • Trembling and difficulty breathing

Signs can appear within minutes (cyanide, cardiac toxins) or only after weeks of exposure (liver toxins). Many poisoned camelids are simply found dead, so prevention is everything.

What to do if your alpaca ate English yew

  1. Move the herd away and remove any remaining plant material, clippings or fallen leaves.
  2. Call your veterinarian immediately, even if the alpaca looks normal. Say what was eaten, roughly how much and when.
  3. Bring a sample or clear photo of the plant to help identification.
  4. Do not give home remedies, oils or try to make the alpaca vomit unless your vet tells you to.
  5. Keep the animal quiet, in shade or shelter, with water available. Write down the time and every symptom you see.
  6. Check every other alpaca that had access, then remove the plant permanently (including roots).

Emergency: call your veterinarian immediately. If you cannot reach them, contact an animal poison control service (in the U.S., the ASPCA Animal Poison Control Center or Pet Poison Helpline; fees may apply). Bring a sample or photo of the plant.

Look-alikes

English Yew can be confused with: Eastern hemlock (Tsuga canadensis); Fir seedlings. When unsure, photograph the leaves, stem and flowers and ask your local extension office or a botanist.

About the plant

Taxus baccata is a species of coniferous tree in the family Taxaceae. It is the tree originally known as yew, though to distinguish it from related species it is sometimes called common yew, European yew, or, in North America, English yew. It is a woodland tree in its native range, which spans much of Europe and parts of West Asia, the Caucasus and Northwest Africa. All parts of the plant except the fleshy aril are poisonous, with toxins that can be absorbed through inhalation, ingestion, and transpiration through the skin.From Wikipedia — “Taxus baccata”, licensed under CC BY-SA 4.0.

Where it grows

GBIF, the Global Biodiversity Information Facility, holds 316,479 recorded observations of Taxus baccata L. worldwide, including 639 in the United States. It belongs to the Taxaceae family, together with Canada Yew, Japanese Yew, Pacific Yew. See the occurrence map on GBIF.

Frequently asked questions

Is English yew poisonous to alpacas?
Yes. Yes — English yew is highly poisonous. Small amounts can kill. Yew is the single most common cause of fatal plant poisoning in pet livestock. As little as a few mouthfuls of needles can kill an adult alpaca. Never throw hedge trimmings over the fence and remove any yew within neck reach of a paddock.
What part of English yew is toxic to alpacas?
All parts except the fleshy red aril; needles and seeds are the most toxic, and clippings stay toxic when dried.
What are the symptoms of English yew poisoning?
Sudden death (often the first sign), slow, irregular or very fast heartbeat, weakness, trembling, collapse, diarrhea and colic, cold extremities and trembling and difficulty breathing.
Is dried English yew safe?
No — the toxin in this plant remains active when dried, so contaminated hay and dried clippings are still dangerous.

Keeping pastures safe

  • Walk every paddock and fence line each season and remove toxic plants, including roots.
  • Never throw garden, hedge or lawn clippings over the fence.
  • Check pastures after storms for fallen branches (cherry, red maple).
  • Buy hay from known sources and inspect it for weeds.
  • Keep pastures well managed — hungry alpacas eat plants they would normally avoid.

Browse the full toxic plant checker, the printable list of poisonous plants and the list of safe plants.

This page is educational and does not replace advice from a veterinarian who has examined your animals. Camelid medicine uses many drugs “extra-label”, so dosing must come from your vet. In an emergency, call your vet first. Read our disclaimer · How we write and review content.

Data: plant status compiled from veterinary toxicology references (see sources); taxonomy and occurrences from GBIF; identifiers from Wikidata Q179729.