Ah, I can easily explain this -- it isn't corn (Zea mays) it's a stalk of some variety of sorghum (Sorghum bicolor), likely a sweet sorghum or a broom corn, hence the "odd" appearance. You can see the seed head beginning to tassel out at the top of the stalk, as well as the characteristic bulging appearance of the sheath that surrounds the emerging tassel.

Most likely a seed was mixed in with your corn seed, probably stuck in the processing or packaging equipment and then later dislodged and ended up in your lot. Or it could have coincidentally been brought in by birds out of birdseed.

Assuming your sweet corn is hybrid, you are just getting genetic kick-back in the family history or your seed.

That kernel some where along the way is the result of a cross pollination that unleashed one or more recessive traits.

When it sets a cob save some pollen from the other corn and pollinate it.
Plant the seeds next year and you may be very surprised at what comes up.

It's not going to "set a cob", it's sorghum, not corn.

He is right that is sorghum.
My error.

I planted some field corn this year again; I prefer it to eat to the no flavor (for me) ultra sweet corn & seed sold now in the stores.But for some reason this year the stalks are 10 ft. high or more & tasseled out long before any ears have formed; now the young slim ears won't be fertilized by the dried up tassles!! Am told by Jong's seed that this is happening all over to not only corn but others dues to the crazy ultra hot & dry summers all over!