Can't remember where, but a suggestion was planted somewhere that the Oblivion Hist wasn't a true Hist at all, but rather was one of any number of particularly powerful hallucinogenic plants from Black Marsh. I favor this idea, as I'd rather believe an encounter with a real Hist would be a little more...climactic.
On the other hand, a Hist tree ripped from its roots from its brother-trees would be very sick indeed.
In my own mind, the Blackwood Hist was a pariah tree cast out by his seed-pod-brothers for extreme, arboreal psychopathy. Grand delusions of conquering the Cyrodiils and burrowing their roots deep into the bedrock of White Gold, of spreading Black Marsh across the face of Tamriel and then Nirn.
It was sickly and nuts in the heartwood, and it certainly didn't come into Nibenay against its will. In so many words, the tree didn't work for Blackwood Company; The company worked for the tree. Hell, the company
was the tree! That whole business about the forest and kitty charcoal warriors was bull, Blackwood was named for that bastard perennial in the basemant.
Of course, this is all in my own mind :teehee: