Dreamcatcher Alpacas
Plant safety · Toxic

Is Red Maple Poisonous to Alpacas?

Red Maple (Acer rubrum) — a tree. Here is what alpaca owners need to know.

Updated 2026-10-02By the Dreamcatcher Alpacas editorial team
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Yes — red maple is toxic to alpacas.

Keep it out of pastures, hay and reach of fences, and never feed trimmings.

Red Maple (Acer rubrum)
Red Maple (Acer rubrum). Photo: Ftlombardo, CC BY 3.0 via Wikimedia Commons.
Status
Toxic
Scientific name
Acer rubrum
Family
Sapindaceae
Plant type
Tree
Also known as
Swamp Maple
Toxic parts
Wilted or dried leaves (fresh leaves are much less dangerous); bark
Toxic compound
Gallic acid derivatives causing oxidative red-cell damage

Why it matters

Severe poisoning is best documented in horses. Camelid data are limited, so the cautious approach is to keep alpacas away from fallen or storm-wilted red maple leaves and to rake heavy autumn leaf fall out of small paddocks. Red maple hybrids (Freeman maple, 'Autumn Blaze') should be treated the same way.

Signs of red maple poisoning in alpacas

  • Weakness and lethargy
  • Pale or brownish gums
  • Dark red-brown urine
  • Rapid breathing
  • Death from hemolytic anemia

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 red maple

  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

Red Maple can be confused with: Sugar maple; Silver maple. When unsure, photograph the leaves, stem and flowers and ask your local extension office or a botanist.

About the plant

Acer rubrum, the red maple, also known as swamp maple, water maple, or soft maple, is one of the most common and widespread deciduous trees of eastern and central North America. The U.S. Forest Service recognizes it as the most abundant native tree in eastern North America. The red maple ranges from southeastern Manitoba around the Lake of the Woods on the border with Ontario and Minnesota, east to Newfoundland, south to Florida, and southwest to East Texas. Many of its features, especially its leaves, are quite variable in form. At maturity, it often attains a height around 30 m (100 ft). Its flowers, petioles, twigs, and seeds are all red to varying degrees. Among these features, however, it is best known for its brilliant deep scarlet foliage in autumn.From Wikipedia — “Acer rubrum”, licensed under CC BY-SA 4.0.

Where it grows

GBIF, the Global Biodiversity Information Facility, holds 148,703 recorded observations of Acer rubrum L. worldwide, including 129,538 in the United States. It belongs to the Sapindaceae family, together with Buckeye & Horse Chestnut, Silver Maple, Sugar Maple. See the occurrence map on GBIF.

Frequently asked questions

Is red maple poisonous to alpacas?
Yes. Yes — red maple is toxic to alpacas. Severe poisoning is best documented in horses. Camelid data are limited, so the cautious approach is to keep alpacas away from fallen or storm-wilted red maple leaves and to rake heavy autumn leaf fall out of small paddocks. Red maple hybrids (Freeman maple, 'Autumn Blaze') should be treated the same way.
What part of red maple is toxic to alpacas?
Wilted or dried leaves (fresh leaves are much less dangerous); bark.
What are the symptoms of red maple poisoning?
Weakness and lethargy, pale or brownish gums, dark red-brown urine, rapid breathing and death from hemolytic anemia.
Is dried red maple 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 Q161364.