Echinacea angustifolia Echinacea angustifolia English Narrow-leaf coneflower, blacksamson echinacea English English E. angustifolia http://en.wikipedia.org/wiki/Echinacea_angustifolia English E. angustifolia Echinacea angustifolia Echinacea angustifolia English English English English English E. angustifolia E. angustifolia http://en.wikipedia.org/wiki/Echinacea_angustifolia English Echinacea angustifolia English English http://en.wikipedia.org/wiki/Echinacea_angustifolia E. angustifolia English