It looks like a buttercup flower but on a bush
Photo Taken: Waterton Lakes National Park Alberta
GPS: 49.1185195 lat, -113.84558 lon
Identification: Calochortus apiculatus
Family: Liliaceae
Authority: Baker
Associated spp.: T. venoenosum, H. matronalis, V. canadensis, D. glacum, G. viscosissimum, C. montanum
Description: Herb, solitary and linear leaves, white corolla, 3-merous, fringed corolla. 2 cm tall.
Habitat: Lush mountain meadows.