https://tnyards.utk.edu/ratibida-columnifera/
Ratibida columnifera | Tennessee Smart Yards
Feb 9, 2021 - Common Name: Long-headed Coneflower, Upright Prairie Coneflower Full sun, medium to dry moisture, adapted to a wide range of soils including clay, mod ...
ratibida columniferatennesseesmartyards
https://www.fws.gov/species/upright-prairie-coneflower-ratibida-columnifera
Upright Prairie Coneflower (Ratibida columnifera) | U.S. Fish & Wildlife Service
ratibida columniferauprightprairieconeflowerfish