Edited: American Milkvetch (Astragalus americanus). I initially suggested possible Yellow Sweet-Vetch (Hedysarum sulphurescens), Wilcox Pass trail, Jasper National Park, AB, Aug 6/19. See explanatory note below.

Edited: Hooker's Eight-petal Mountain-Avens (Dryas octopetala ssp. hookeriana). I initially suggested Mountain Avens, possible Dryas octopetala, white, Wilcox Pass trail, Jasper National Park. Columbia Icefield, AB, Aug 6/19

Edited: Snow Fleabane Daisy (Erigeron nivalis). I initially suggested possible Subalpine Fleabane (Erigeron glacialis), pink mauve, I am not used to seeing small ray flowers, so I am cautious about the ID, limestone dolomite substrate, Wilcox Pass trail, Jasper National Park, Columbia Icefield, AB, Aug 6/19

Edited: Rocky Mountain Groundsel (Packera streptanthifolia). I initially suggested Groundsels (Genus Senecio), may be Tall Western Groundsel (Senecio integerrimus), but appears to be at northern limit of range, yellow, limestone dolomite substrate, Wilcox Pass trail, Jasper National Park, Columbia Icefield, AB, Aug 6/19