| Solidago gigantea | 
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| Scientific classification | 
| Kingdom: | Plantae | 
 
| Clade: | Tracheophytes | 
 
| Clade: | Angiosperms | 
 
| Clade: | Eudicots | 
 
| Clade: | Asterids | 
 
| Order: | Asterales | 
 
| Family: | Asteraceae | 
 
| Genus: | Solidago | 
| Species: | S. gigantea | 
| Binomial name | 
| Solidago gigantea 
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| Synonyms | 
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Aster latissimifolius var. serotinus  Kuntze
Doria dumerorum  (Lunell) Lunell
Doria pitcheri  (Nutt.) Lunell
Solidago cleliae  DC.
Solidago deflexa  Moench
Solidago dumetorum  Lunell
Solidago fragrans  A.Gray
Solidago gigantea var. leiophylla  Fernald
Solidago gigantea var. pitcheri  (Nutt.) Shinners
Solidago gigantea var. serotina  (Kuntze) Cronquist
Solidago gigantea subsp. serotina  (Kuntze) McNeill
Solidago gigantea var. shinnersii  Beaudry
Solidago glabra  Desf.
Solidago pitcheri  Nutt.
Solidago sera  J.F.Gmel.
Solidago serotina  Aiton
Solidago serotina var. dumertorum  (Aiton) A.Gray
Solidago serotina var. gigantea  (Aiton) A.Gray
Solidago serotina f. huntingdonensis  Beaudry
Solidago serotina var. minor  Hook.
Solidago serotinoides  Á.Löve & D.Löve
Solidago shinnersii  (Beaudry) Beaudry
Solidago somesii  Rydb.
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Solidago gigantea is a North American plant species in the family Asteraceae.: 211  Its common names include tall goldenrod and giant goldenrod, among others.
Goldenrod is the state flower of Kentucky and of Nebraska.