Jamaican nettletree (Trema micrantha) is an evergreen shrub or tree which is from the Cannabaceae plant family. It grows in South America, Mexico, and parts of the Southeastern United States (Florida). The tree reaches heights of between 2-20 meters and most often found at the edges of clearings.
There have been several documented cases of poisonings in goats and horses, related to ingestion of the leaves from the tree, which are highly palatable to animals. The toxins in the plant that cause poisoning are unknown, but results in acute liver damage often accompanied with neurologic signs of hepatic encephalopathy.
- Loss Of Appetite
- Changes In Fecal Consistency (varying Between Liquid And Pasty)
- Apathy
- Aggressive Behavior
- Muscular Tremors
- Dyshagia
- Abnormal Posture
- Reluctance To Move
- Jaundice
- Progressive Weakness
- Lorenzett, M. P., et al. Neurotoxicosis in horses associated with consumption of Trema micrantha Equine Veterinary Journal 50(2). 2018.
- OliveiraâFilho, J. P., et al. Hepatoencephalopathy syndrome due to Cassia occidentalis (Leguminosae, Caesalpinioideae) seed ingestion in horses Equine veterinary journal 45.2 . 2013.
- Wouters, F., et al. Pneumotoxicosis in sheep caused by ingestion of Trema micrantha Veterinary pathology 50.5 . 2013.
- Pavarini, Saulo Petinatti, et al. New aspects of Trema micrantha (Cannabaceae) poisoning in equids Pesquisa Veterinária Brasileira 33.11. 2013.
- Bandarra, P. M., et al Trema micrantha poisoning in domestic herbivores Poisoning by Plants, Mycotoxins, and Related Toxins. CAB International, Oxfordshire, UK. 2011.
- Bandarra, P. M., et al. Trema micrantha toxicity in horses in Brazil Equine veterinary journal 42.5 . 2010.
- Traverso, Sandra Davi, et al Spontaneous poisoning by Trema micrantha (Ulmaceae) in goats Acta scientiae veterinariae. Porto Alegre, RS. Vol. 33, n. 2. 2005.
- Traverso, S. D., and D. Driemeier. Experimental Trema micrantha (Ulmaceae) poisoning in rabbits Veterinary and human toxicology 42.5. 2000.
- Trueman, K. F., and M. W. Powell. Suspected poisoning of camels by Trema tomentosa (poison peach) Australian veterinary journal 68.6. 1991.
- Hill, B. D., L. D. Wills, and R. M. Dowling. Suspected poisoning of horses by Trema aspera (poison peach) Australian veterinary journal 62.3. 1985.