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:
- Bigelowia spp., rayless goldenrods, 2 species native to the Southeastern United States
- Cuniculotinus gramineus, Panamint rock goldenrod
- Euthamia spp., flat-topped goldenrods or grass-leaved goldenrods, 5 species native to North America
- Gundlachia triantha, Trans-Pecos desert goldenrod
- Lorandersonia microcephala, small-headed heath goldenrod
- Medranoa palmeri, Texas desert goldenrod
- Petradoria pumila, rock goldenrod
- Solidago spp., goldenrods, around 120 species native to the Americas, northern Africa, Europe, Asia
- Weakley, Alan S. (2020), Flora of the Southeastern United States, University of North Carolina Herbarium, North Carolina Botanical Garden, University of North Carolina at Chapel Hill
- Semple, J. C.; Cook, R. E. "Solidago Linnaeus sect. Ptarmicoidei (House) Semple & Gandhi". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). New York and Oxford. Retrieved 8 January 2020 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
- McKone, Mark J. (1986). "Nitrogen fixation in association with the root systems of goldenrods (Solidago L.)". Soil Biology and Biochemistry.
- "Bigelowia DC". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 13 November 2020.
- "Euthamia (Nutt.) Cass". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 13 November 2020.
- "Solidago L." Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 13 November 2020.