Cedar (Cedar of Lebanon, Atlas Cedar)
Cedrus spp.
Horse
Low
Remove access and monitor the horse; call at the first sign. Large consumption of needles or bark gnawed due to boredom.
Equio informs, it does not diagnose. When in doubt, call your vet.
What to do now
- Antidote
- No specific antidote. Symptomatic and supportive treatment.
- Time to signs
- A few hours to 24 hours.
- Prognosis
- Excellent.
- Remove the horse from the plant.
- Ensure good hydration.
- Monitor for signs of colic.
Its ID card
- Height
- 20 m – 50 m
- Flowering
- Not applicable for toxicity, but cones develop over a long period.
- Toxic parts
- Needles and bark.
- Toxin
- Terpene essential oils (Cedrol, pinene).
- Habitat
- Large gardens, castle parks, forest reforestations (south).
- Soil indicator
- Well-drained soils, tolerates summer drought.
- Regions
- Europe (Parks and planted forests)
- In hay
- Not reported
- Palatability
- Very low (strong resinous taste), but horses sometimes attack it in winter due to a complete lack of forage.
When the risk rises
Winter.
Spotting it in the field
Larch (which sheds its needles in winter), Pine (much longer needles). — smell : pronounced resinous smell from needles and bark.
- Monumental tree with horizontally spreading branches.
- Short, prickly needles, grouped in rosettes.
- Enormous, barrel-shaped, upright cones.
Signs to watch for
Acute toxicity.
Dose : Significant quantity of needles or bark (several kilograms).
- Moderate colic
- Very strong-smelling urine (pine scent) and sometimes darker
- Mild diarrhea
- Drooling if sharp needles irritate the mouth
Who is affected
Other species : Irritant to sheep/cattle in cases of scarcity.
In pregnant mares : terpenes in high doses can have a slight irritant effect on the uterus, but cases of abortion are very rare.
Getting rid of it
Method : Not applicable as an eradication method, but access management is key.
- Avoid overstocking horses in areas where cedar is present.
- Provide adequate forage, especially in winter, to reduce boredom and the urge to gnaw.
- Fence off tree trunks if bark-gnawing behavior is observed.
Frequently asked questions
Can Equio identify Cedar (Cedar of Lebanon, Atlas Cedar) from a photo?
It can help organize visual clues, but plant identification must remain cautious when horse health is at stake.
Is Cedar (Cedar of Lebanon, Atlas Cedar) 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.
