Help identifying this plant along a river in Vermont

I was walking along a river in Woodstock Vermont yesterday and ran across this beautiful creature!  It was the only one that I noticed.  The balls of berries are smaller than tennis balls, but larger than golf balls....closer to tennis balls.  Anyone know what it is?

This. There are a few species I believe. It's related to the Greenbrier and Sarsaparilla. It also has several medicinal uses, and parts are edible.
https://en.m.wikipedia.org/wiki/Smilax_herbacea

Thank you, Thomas!  Based on that I decided that this plant could spare one cluster of seeds traveling with me back to Maine.  Fingers crossed....I don't yet have any Smilax growing on my property but have been curious about this genus.

That is rather gorgeous Greg!
Pfaf give Smilax herbacea a rating of 4 for edibility and say:

Leaves and young shoots - raw or cooked and used like asparagus[85, 102, 159]. A delicate and palatable vegetable[183]. Fruit - raw or cooked and used in jellies etc[85, 183]. It should only be used when fully ripe[183]. A pleasant flavour[207, 257]. The fruit is about 10mm in diameter[200]. Root - cooked[257]. It can be dried, ground into a powder and then used with cereals for making bread etc[62, 102]. It can also be used as a gelatine substitute[62, 102].

source

Sounds rather useful doesn't it? But I would have it too, just for the look of those fruit! I gather the plants are dioecious so you will need a male and a female to get fruit.

Wow. I need to get some of those eventually.

I want to touch it.