Black-eyed Susan has large (up to 3 in across) flowers with 10-20 yellow petals around a flat, dark brown centre. It has hairy leaves and stems (10-30 in). Native to the western plains, it has spread and is now common throughout North America. You'll find it flowering all summer long in open, sunny locations.
Could it be? Gaillardia is similar to Black-eyed Susan, but its petals are bicolored (yellow and pinkish-orange) around a reddish-brown central disc and each petal is notched and divided into 3 prongs. Gloriosa Daisy, a garden flower, is related to Black-eyed Susan but has larger orange, red, or bicolor flowers.
Did you know? Butterflies, bees, and other pollinators are attracted to the flowers and birds enjoy the seed heads in winter.