Goldenrod
Overview
Solidago, commonly called goldenrods, is a genus of about 100 species of flowering plants in the family Asteraceae
Asteraceae
The Asteraceae or Compositae , is an exceedingly large and widespread family of vascular plants. The group has more than 22,750 currently accepted species, spread across 1620 genera and 12 subfamilies...

. Most are herbaceous perennial species found in the meadows and pastures, along roads, ditches and waste areas in North America
North America
North America is a continent wholly within the Northern Hemisphere and almost wholly within the Western Hemisphere. It is also considered a northern subcontinent of the Americas...

. There are also a few species native to Mexico, South America, and Eurasia. Some American species have also been introduced into Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

 and other parts of the world.
Solidago species are perennials growing from woody caudices or rhizomes.
 
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