A few days ago, I took my kids for a walk to the top of Mt. Washington (in Los Angeles). They needed to get out of the house and burn some energy. At the top of the hill is an LADWP facility comprised of water tanks, microwave relays and a weather station. Along one fence enclosing the facility, we saw what appears to be a native grape vine laden with yet unripened fruit.
I see this type of vine growing all around – along the freeways and in parks.
I have never, however, seen it covered in fruit clusters. The bunches are not yet at closure but the berries contain one large seed (about two to three times the size of what you might find inside a v. vinifera berry.
Is this Vitis Californica? Is it the Mission grape? Is it even vinifera?
Any feedback would be helpful as I hope to harvest and make wine from these grapes.