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grayanotoxin

n. (context organic chemistry English) Any of a family of toxins found in rhododendrons and similar plants

Wikipedia
Grayanotoxin

Grayanotoxins are a group of closely related toxins found in rhododendrons and other plants of the family Ericaceae. They can be found in honey made from their nectar and cause a very rare poisonous reaction called grayanotoxin poisoning, honey intoxication, or rhododendron poisoning. Grayanotoxin I (see below) is also known as andromedotoxin, acetylandromedol, rhodotoxin and asebotoxin; the systematic chemical name is: grayanotaxane-3,5,6,10,14,16-hexol 14-acetate. Grayanotoxins are named after Leucothoe grayana, a plant species from Japan, which is in turn named after 19th century American botanist Asa Gray.