@curioustraveller good afternoon, IMO you are spot on. The Roughfruit fairybells as they are commonly known.
Interesting. I love and grow Prosartes and Disporum...but have to confess that I have never got to grips with how the heck you tell one sp from another. Were the berries rough with velvety skinned surface..I cannot tell from images? Prosartes Trachycarpa rough skin berry - Google Search Prosartes - Wikipedia
For what it's worth, the fruit of my Prosartes hookeri and P. smithii (formerly Disporum) is found beneath the leaves, not above, as in your photos and others. It would seem that the roughness and size of the fruit plus the fact that they are held above the leaves suggests P. trachycarpa. This is not definitive I know as there are other Prosartes species although they are not likely native to the Edmonton area.
Streptopus amplexifolius does look quite similar to the plant in @curioustraveller 's photos. I don't think it is though. S. amplexifolius is often referred to as Clasping Twisted Stalk for the reason that there is a pronounced zig-zag to the the main stem. Even the little stem (peduncle?) that attaches the flower has a kink in it which the photos above do not show. Also, the flowers and fruit of S. amplexifolius are more likely to hang under the stem than on top of it. E-Flora BC photos show this quite clearly. E-Flora BC Atlas Page
Just a small correction - the twisted stalk part of the name has to do with the pedicel (the stalk below the flower)--it is this that is twisted, as shown in your image. The zigzag stems are also cool, though!
