Clark SD | That could be, found this in the link JohnW provided in a tread a ways up. Horsetail and scouring rush are most commonly found in poorly drained areas, such as roadsides, wetlands and drainage ditches. The preference for wet areas is due to the requirement for a moist environment during establishment with spores. However, the plants may move into well-drained areas through vegetative reproduction. As tillage has been reduced for corn and soybean production, equisetum may slowly encroach into crop fields from established patches in road rightof-ways.
Equisetum: Biology and Management | Integrated Crop Management (iastate.edu) |