Goldenrod
Goldenrod is a common name for many species of flowering plants in the sunflower family, Asteraceae, commonly in reference to the genus "Solidago". Several genera, such as "Euthamia", were formerly included in a broader concept of the genus "Solidago". Some authors treat "Oligoneuron", the flat-topped goldenrods, as a separate genus than "Solidago", while others consider it a section: "Solidago" sect. "Ptarmicoidei". Goldenrods can be used as a sustainable method to enrich soil with nitrogen. With an increase of nitrogen levels, there can then be an increase of vegetative growth. Plants known as goldenrods include: