👉 Pternistis is a genus of flowering plants in the family Fabaceae, commonly known as the sunflower or sunflower species. They are native to North America and are part of the sunflower family, which also includes other related genera such as the asters and the sunflowers. Pternistis flowers typically have five petals with sepals that are smaller than the petals, giving them a round shape and a slightly curved stem.