Its a wild red raspberry. They are translucent, and taste ok. They do not have the 'frosted' look of a regular raspberry, they are very shiney. Mrs. G

It's Rubus phoenicolasias aka Japanese Wineberry.

Thanks Floral! I couldn't find the name anywhere, quickly. They grown wild here in the NE of America; weed-like at the edge of forests and roadsides. Could this berry be a reversion back to one of its parents? Mrs. G

I SAW the Prime Jim being transplanted where this Japanese Wineberry is, and there are no such plants on my property. I'm still scratching my head over this one. Maybe a bird pooped out a seed?

I'm a curious type, so I am looking forward to sampling these berries. The flavor is described as sweet and tart, with a raspberry-like flavor (duh).

This is the second case on this forum within the past few weeks of blackberry morphing into wineberry after a transplant. Check for nearby alien landing craft marks.

Are there enough plants to form a row--birds don't plant seed like this.

They are indeed in a row. But as I said, there are absolutely no other Japanese wineberry bushes on my property.

I'm going to go look for that other case. That's just weird.

"Could this berry be a reversion back to one of its parents?"
Probably not, it is an invasive species, but at least it has fruit and is useful in that sense. I would go with the bird droppings, he saw more berries and checked yours out. Makes a lot of sense. A berry eating bird is going to hang around any berries it finds.

Are there situations where you go from a sprouted seed to blooming canes in well under a year?

"Are there situations where you go from a sprouted seed to blooming canes in well under a year? "

No, he must have moved a cane thinking it was Prime Jim. Sounds like Ilovecucumbers moved more than one plant, it was probably already there.