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.

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 ...

Fields of purple flowers can look romantic and inviting, but some can harbor a dark secret. Larkspur is a toxic wildflower that grows mostly in the western U.S. While human poisonings are rare ...