American Dragonhead (Dracocephalum parviflorum Nutt.)

↑Range - Expand

Legend	Color
Native
Expanded
Native or Not Present
Native or Expanded
Expanded or Not Present

This tentative map is based on our own research. It may have limited data on Canada and/or Mexico, and there is some subjectivity in our assignment of plants as introduced vs. expanded. Read more in this blog post.

This is a weedy plant that is rarely planted and tends to spread on its own; it favors disturbed habitats and has thus spread eastward in response to land clearing in more humid regions. In the newer eastern portions of its range, it becomes increasingly rare and sporadic to the south, but we marked the whole new range as expanded because it reflects organic expansion rather than isolated introduction to separated areas.