silphium asteriscus

Silphium asteriscus, commonly called starry rosinweed, is an herbaceous plant in the aster family. It is native to the eastern United States, from Oklahoma and Texas east to Florida and Pennsylvania. It is a widespread species found in a variety of open habitats, such as prairies and woodlands.

Additional research is needed to better understand the taxonomy of this species. It remains perhaps the most poorly-understood Silphium in eastern North America. It appears to show a high level of local variability ...