It originates in Caucas, but thought to be good to make silage, but in fact it wasn’t, it is invasive now in basically almost anywhere in European Russia along roads or open fields, it is a huge plant up to 4 metres, its juices containe furanocoumarins that react under uv light, you can get bruises for life or even get blind. It’s also one of the worst weeds as it changes fields into plantations of itself, it’s spreading easily with tons of seeds and you can’t get rid of it in one season. There’re other close species like Heracleum mantegazzianum that is up to y metres also originated from Caucasian region and invasive in Europe.
