Please explain what you mean, I am not familiar with the terms. 

The seed harvested here is Kentucky 31 Tall Fescue, or at least that is what it is bagged as.  A minority of what is actually around is a Missouri variety (Marion, I believe) which is endophyte free, but I doubt you could find a pure stand of it.  I don't think you can identify the two by appearance.  I really don't know what happens to it, but it goes southeast in bags.