Seeds don't necessarily mean there is a male around. Hops can sprout male cones on a female plant when conditions are harsh. It is a coping method....a last ditch effort to have their genes survive. I picture them saying "Well crap, if I'm gonna die this year I might as well lay down some viable offspring to take this place over, where I have lived for the past 100 years or more, and have some fun doing it!"
Hops don't just have the simple XX or XY sex determinant genes, they have many dozens of them. If you remember back to those tic-tac-toe type square genetic diagrams, then stretch it out to 5 checker boards wide and 5 high; that's sort of how many plants determine sex. Newer varieties have been streamlined to have very little (if any) male genes left in them.
I grew wild hops this year. Left some on the fence row, but trellised them up 15 ft. and took some home and grew them in containers with good moisture and fertilized regularly. The container hops were fewer, but much better cone quality and aroma. I am going to dig some more up this spring and put them in the ground. We had a pretty hot and dry summer up here in WI (not compared to other places) and the hops left in place sprouted a few male cones here and there.
Used a few in a batches comparing wild to known first year hops (cascade and EKG). All of the beers were bland, with no hop character. I have yet to use the container "wild" hops and see what they are like.
Grow em, try em, and then decide what you want to do with them.
