|Solidago speciosa var. erecta|
Solidago speciosa, the showy goldenrod, is a North American species of flowering plants in the sunflower family. 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).
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.
- Solidago speciosa var. rigidiuscula Torr. & A.Gray - mostly in western portions of range
- Solidago speciosa var. speciosa - mostly in eastern portions of range
- 1913 illustration from USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 384.
- The Plant List, Solidago speciosa A.Gray
- Tropicos, Solidago speciosa Nutt.
- "Solidago speciosa". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 19 November 2015.
- "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-02-25. Retrieved 2014-10-17.
- Biota of North America Program 2014 county distribution map
- Flora of North America, Solidago speciosa Nuttall, 1818. Showy or noble goldenrod
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