Tree of Heaven, aka "stinking sumac"

We rediscovered the name of the obnoxious weed tree in our yard. (We'd been told but we'd forgotten.) It's Tree-of-Heaven, ailanthus altissima, and it's also known as stinking sumac, Chinese sumac, or stink tree. We're doing what we can to make it feel extraordinarily unwelcome--involving holes drilled in root balls and concentrated Roundup poured directly into the holes--but it's going to be a long battle, I fear.

Tree of Heaven, aka "stinking sumac"