[gobotany.nativeplanttrust.org] Range, Habitat, Native American Medicinal Uses: Tower mustard is native to North America as well as Europe, Asia and northern Africa. It inhabits woodlands, dry fields and disturbed areas in all New England states. Its name refers to the tall, narrow aspect of the plant. The Cheyenne made a tea of this plant to treat colds and as a general tonic to prevent sickness. (link added by Mary Ann Machi)