I have been studying a slew of different trees and i see a progression, mutation, evolution...but I am still not sure who devised the modern tree and if there is an image of it. The Sefer Yetzirah speaks of a 3-5 dimensional tree. I have drawn it according to instruction and it does not look like the modern tree. I have read that the first tree was drawn 100's of years after the SY but I have no good source on that date. I would love to have some real answers if anyone knows. Merci!