EVANSVILLE, Ind. — Spring has sprung, and one telltale sign is the fields of purple flowers in the area. These plants appear in corn and soybean fields, where they are visible to passersby.

Flocks of purple martins heading south for the winter are so large that they can be seen on a weather radar in Kentucky.According to the Kentucky Department of Fish and Wildlife, after leaving ...

American and Kentucky wisterias are native to the United States, but they are unlikely to be the ones Philadelphians are seeing on trees, Bunting said. The sweet-scented purple fluffy flowers are ...