There are a couple distinctive hops, but in most cases identification is tough. There are eight cone shapes, five leaf types, clustering hops, and non-clustering, short side-arms, and long side-arms, etc. The problem arises that a single hop can have different characteristics depending on growing conditions.
At one extreme, female plants can turn into male plants when stressed.
Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
"I would like to die on Mars, just not on impact." Elon Musk