Abstract
In Hailat [5]. k-rootsystems are introduced and studied. Then, in Hailat [3]GW-rootsystems (those k rootsystems having only grey and white roots such that the length of any white orbit is 1p−1 or p) are classified over fields of characteristic p≠7. Here, we consider the remaining case of GW-rootsystems over fields of characteristic p=7. It is shown that the GW-rootsystem of rank 2 over are: