Windscreen wiper blade

The invention relates to a support mount (10) for a windshield wiper blade, said mount (10) comprising a body with a main longitudinal orientation (X), said body comprising first means intended to receive a bending vertebra (20) and second means intended to retain a deflector (30) of said blade, characterized in that said second means comprise recesses (50) facilitating the bending of said vertebra. The invention also relates to a windshield wiper blade comprising such a mount (10). The invention further relates to a wiping system comprising such a blade.