Stems erect, glabrate. Leaf blades (6-)8-14 cm, margins serrate, abaxial faces densely gland-dotted. Peduncles (relatively slender) 20-40 cm. Ray laminae 15-23 mm. Discs 14-15(-16) mm diam. 2n = 34. Flowering late spring-fall. Open areas , sandy soils with pine and oak; 10-100+ m; Tex.