ORIGINAL: Sport_Pilot
While I agree the graph may be exaggerated, I don't agree that a stalled wing creates lift at any positive angle of attack. I don't think any have any lift at say 89º angle of attack. You are getting into nitnoids. Safer to assume no lift. Thinking there will be some seems almost dangerous. The lift will be small enough to think of it as zero.
Hugh,
Maybe not at all angles, but an average wing stalls around 17º and will make lift at any angle it is likely to reach in flight.
Even at angles beyond 45º it will make some lift.
Only blown elevators can actually produce an AoA which is much higher than the stall AoA of the wing.