Solidago speciosa

{{Short description|Species of flowering plant}}

{{Speciesbox

|image = Showy Goldenrod (Solidago speciosa) - Flickr - wackybadger.jpg

| status = G5

| status_system = TNC

| status_ref = {{cite web |title=NatureServe Explorer 2.0 |url=https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.161090/Solidago_speciosa |website=explorer.natureserve.org}}

|genus = Solidago

|species = speciosa

|authority = Nutt.

|synonyms_ref = [http://www.theplantlist.org/tpl1.1/record/gcc-131742 The Plant List, Solidago speciosa A.Gray ][http://www.tropicos.org/Name/2718019 Tropicos, Solidago speciosa Nutt.]

|synonyms = {{collapsible list|bullets = true

|title=Synonymy

|Aster speciosus (Nutt.) Kuntze

|Solidago pallida (Porter) Rydb.

|Solidago harperi Mack. ex Small

|Solidago jejunifolia E.S.Steele

|Solidago chandonnetii E.S.Steele, syn of var. rigidiuscula

|Solidago rigidiuscula (Torr. & A.Gray) Porter, syn of var. rigidiuscula

|Solidago venulosa Greene, syn of var. rigidiuscula

|}}

}}

Solidago speciosa, the showy goldenrod,{{PLANTS|id=SOSP2|taxon=Solidago speciosa|accessdate=19 November 2015}}{{BSBI 2007 |access-date=2014-10-17}} is a North American species of flowering plants in the family Asteraceae. It grows in the province of Ontario in central Canada, as well as in the eastern and central United States (from the Atlantic coast west as far as the Great Plains, so from Maine to Georgia (except Delaware) west as far as Texas, Nebraska, and the Dakotas).[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242417299 Biota of North America Program 2014 county distribution map]

Solidago speciosa is a perennial herb up to 200 cm (80 inches, over 6 feet) tall, producing a thick underground caudex. One plant can produce as many as 5 stems, each with up to 300 small yellow flower heads.

;Varieties[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242417299 Flora of North America, Solidago speciosa Nuttall, 1818. Showy or noble goldenrod ]

• Solidago speciosa var. rigidiuscula Torr. & A.Gray - mostly in western portions of range
• Solidago speciosa var. speciosa - mostly in eastern portions of range