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black-eyed susan
Scientific Name: Rudbeckia hirta
Description: The Black-Eyed Susan is one of the most common wildflower in the United States. It is easy to identify with its dark brown dome in the center of a large yellow flower. This flower is a biennial plant, meaning that it has a life cycle of two years. The first year the plant simply grows a circular pattern of leaves with no flower. It is in the second year of its life when it grows a flower and starts producing seeds. The plant dies after its second year. 
Black-Eyed Susans grow up 3 feet tall. Its flowers are about 2 to 3 inches wide. The stem of this wildflower is covered with many small hairs that give the plant a rough texture.
These wildflowers are very common and can grow in any number of habitats as long as they get plenty of sunlight.