alt Hacker NewsWell, not exactly in that there are cultivars and farm differences. In that way it is a little bit like grape wine, where different processing can produce very different wines from the same grapes, but there are also differences in grapes that can come through within a style.
In a way, yes; Wuyi rock oolong will be different than a high mountain Taiwanese oolong. But what most people think of as green vs black tea, they don't realize that it's the same exact plant. Camellia sinensis has only 2 cultivars, var. sinensis (the main one) and var. assamica.