Tyrannoak

it is a Grass/Dark type. it is the final evolutionary form of Saurshrub and Treax

Biology
it is a large bipedal pokemon. it's back is forest green but the rest is black. it has a large trex body and maw. on its head is a thick bush on top and on it's chin like a beard. it's arms are thicker than trex's and almost more like human arms ending in five claws and are brown. it's thick legs are brown end with four claws. it's tail is long.

Origin
it is based off of Trex and trees. its name is a combo of tyranno and oak.