👉 Summerhayesia is a genus of flowering plants in the family Apiaceae, commonly known as the summer lilies or daffodils. These plants are native to Europe and North America, growing from a single stem, which they then develop into a large cluster of flowers, with many varieties. They have a long, slender stem that is usually about 30-60 centimeters in diameter. The flowers are typically pink, white or yellow, and they bloom from late summer