Cuckoo Pint
Arum maculatum
Horse
Moderate
Any suspected ingestion is an immediate veterinary emergency. A few leaves or berries are sufficient to trigger the mechanical reaction (crystals).
Equio informs, it does not diagnose. When in doubt, call your vet.
What to do now
- Antidote
- No specific antidote. Symptomatic and supportive treatment to manage edema and pain.
- Time to signs
- A few minutes to one hour
- Prognosis
- Good if asphyxiation is avoided. Oral pain can prevent the horse from drinking and eating for 48 hours.
- Veterinary emergency if throat swells (risk of suffocation).
- Rinse the mouth with abundant water.
- Administer corticosteroids and anti-inflammatories to reduce pharyngeal edema.
Its ID card
- Height
- 20 cm – 50 cm
- Flowering
- April to June.
- Toxic parts
- Entire plant (leaves, spadix, red berries).
- Toxin
- Calcium oxalate crystals, saponins, and aroidin.
- Habitat
- Cool, shady undergrowth, dense hedges, forest edges, thickets.
- Soil indicator
- Humus-rich, very moist, and calcareous forest soils.
- Regions
- Europe (especially Western and Central)
- In hay
- Not reported
- Palatability
- Low. The horse usually stops after the first bite due to the intense, searing pain from the 'needles'.
When the risk rises
April-May (young leaves) and August (attractive red berries).
Spotting it in the field
Wild sorrel (leaf shapes are distantly similar, but sorrel is not mottled and grows in the sun). — smell : odorless.
- Large, spear-shaped leaves, often dark green and mottled with black/brown.
- Unusual inflorescence forming a pale green spathe enclosing a purplish spadix ('wand').
- Cluster of bright red berries in late summer.
Signs to watch for
Acute toxicity due to mechanical irritation.
Dose : Difficult to quantify precisely due to the irritating nature of the crystals. A few leaves or berries can cause severe symptoms.
- Immediate massive hypersalivation
- Severe swelling (edema) of the lips, tongue, and throat
- Difficulty breathing (possible asphyxiation due to swelling)
- Extreme agitation, horse rubbing its mouth frantically
- Severe diarrhea if the plant was swallowed
Who is affected
Other species : Violent irritation for dogs, cats, and children (berries).
In pregnant mares : related to acute stress and hypoxia in case of throat swelling.
Getting rid of it
Method : Uproot the entire plant, including roots, wearing gloves to avoid skin contact. Destroy uprooted parts by burning or deep burial.
- Inspect paddocks and grazing areas to identify and remove the plant.
- Fence off wooded areas or undergrowth where Arum maculatum grows.
- Be particularly vigilant in spring and late summer.
Frequently asked questions
Can Equio identify Cuckoo Pint from a photo?
It can help organize visual clues, but plant identification must remain cautious when horse health is at stake.
Is Cuckoo Pint dangerous in hay?
Hay risk is not always reported for this entry, but suspicious forage should still be isolated until checked.
This page is informational. If ingestion is likely, if signs appear, or if the horse is fragile, contact a veterinarian immediately.