large wide cup-d canary yellow flowers of missouri evening primrose

large wide cupshaped canary yellow flowers missouri evening primrose cup shaped oenothera macrocarpa bigfruit ozark sundrop flower nature green foliage greenery vegetation outdoors plant lush beautiful botany vibrant bright ornamental branch anceolate leaf leafage bud florescence blossoming inflorescence bloom blossom petal creeper prostrate procumbent ground cover season spring perennial park garden bed herb herbaceous trailing stem