I see this plant in many places, especially along I-20 between Columbia and Bishopville (both sides of the interstate.
It feels a little sticky to the touch.
In a group, they don’t all seem to bloom at the same time.
this is called the Combleaf yellow false foxglove, Aureolaria pectinata. A mouthful! It is a very nice native wildflower found mostly in the sandhills, but it can be found elsewhere. You can find out more about it here: http://www.southeasternflora.com/view_flora.php?plantid=750
Steve Hill, Botanist, SCNPS