is it toxic?
Yes, the leaves are extremely toxic to horses.
Acer rubrum
The leaves of red maple, especially when dead or wilted, are extremely toxic to horses.
the red maple is also known as acer rubrum. its scientific name is Yes, the scientific name of red maple is Acer rubrum. is it a tree? Yes, a medium to large sized tree. where is its found? In eastern North America. how big does it grow? It is a medium to large sized tree. is this tree only found in america? No, it is also cultivated in United Kingdom. do you know in which states in america? Nova Scotia, Minnesota, Wisconsin , Illinois, Missouri and others. and in the u.k.? UNANSWERABLE describe its leaves? They are typically long and wide with 3-5 palmate lobes with a serrated margin. The sinuses are typically narrow, but the leaves can exhibit considerable variation. When five lobes are present, the three at the terminal end are larger than the other two near the base. is it edible? Yes, it is used to produce maple syrup.
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Acer rubrum [SEP] Toxicity
The leaves of red maple, especially when dead or wilted, are extremely toxic to horses. The toxin is unknown, but believed to be an oxidant because it damages red blood cells, causing acute oxidative hemolysis that inhibits the transport of oxygen. This not only decreases oxygen delivery to all tissues, but also leads to the production of methemoglobin, which can further damage the kidneys. The ingestion of 700 grams (1.5 pounds) of leaves is considered toxic and 1.4 kilograms (3 pounds) is lethal. Symptoms occur within one or two days after ingestion and can include depression, lethargy, increased rate and depth of breathing, increased heart rate, jaundice, dark brown urine, colic, laminitis, coma, and death.