close shot of yellow flowers of rudbeckia triloba in august

rudbeckia triloba brown black eyed susan thinleaved coneflower threeleaved nature green foliage greenery vegetation flora outdoors plant lush beautiful botany vibrant bright weed uncultivated ornamental leaf florescence inflorescence bloom flower blossom head florets petal season summer autumn park garden bed meadow yellow roadsides herbaceous biennial daisylike amber gold