two buds and one yellow flower of oenothera macrocarpa

anceolate bed bigfruit bloom blossom blossoming botany branch bright bud buds cover creeper evening florescence flower foliage garden green greenery ground herb herbaceous inflorescence june leaf leafage lush macrocarpa missouri nature oenothera one ornamental outdoors ozark park perennial petal plant primrose procumbent prostrate season stem summer sundrop trailing two vegetation vibrant yellow