This may not be identifiable now, but some of you are so talented that it's worth a try. These plants were growing on an Arkansas, upland prairie site. They were 4-5 feet tall, with flowers clustered in corymbs. Branches were opposite. Calyces were campanulate, with 5 lobes. Each calyx tube had four seeds at the bottom, mounted on short stipes. Seeds were angular, with 3 faces. Stems, the few leaf fragments, and calyces were densely covered in very tiny, curled hairs so that the surfaces underneath were obscured.