Compilation
Solidago gigantea

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Name

Identification
Solidago gigantea Aiton [family ASTERACEAE ] (stored under name);
Related name
  • Solidago ciliaris
  • Solidago procera
  • Solidago juncea
  • Solidago latifolia
  • Solidago rugosa
  • Solidago arguta
  • Solidago scabra
  • Solidago gigantea
Common name
  • Rocky Mountains Canada goldenrod, Flora of North America Vol. 20
  • verge d’or géante, Flora of North America Vol. 20
  • Tall or giant or smooth goldenrod, Flora of North America Vol. 20

Flora

Entry for Solidago lepida de Candolle var. salebrosa (Piper) Semple [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Solidago lepida de Candolle var. salebrosa (Piper) Semple [family COMPOSITAE], Sida, 20: 1611. 2003
Solidago serotina Aiton var. salebrosa Piper [family COMPOSITAE], in C. V. Piper and R. K. Beattie, Fl. Palouse Reg., 185. 1901
Solidago canadensis Linnaeus subsp. salebrosa (Piper) D. D. Keck [family COMPOSITAE]
Solidago canadensis var. salebrosa (Piper) M. E. Jones [family COMPOSITAE]
Solidago gigantea Aiton var. salebrosa (Piper) Friesner [family COMPOSITAE]
Solidago salebrosa (Piper) Rydberg [family COMPOSITAE]
Solidago serra Rydberg [family COMPOSITAE]
Treatment Author(s)
John C. Semple
Rachel E. Cook
Information
Heads in pyramidal paniculiform arrays, proximal branches arching to recurved. 2n = 18, 36, 54.
Phenology
aug (summer), sep-oct (fall)
Altitude range
0–2900+ m;
Distribution
USA Ariz.USA Colo.USA IdahoUSA Mont.USA Nev.USA N.Mex.USA UtahUSA Wash.USA Wyo.Canada Alta.Canada B.C.Canada Man.Canada Sask.
Discussion
Variety salebrosa strongly resembles Solidago canadensis, and is found throughout most of the Rocky Mountains in the United States and adjacent Canada. It has been included in S. canadensis by many authors (e.g., A. Cronquist 1994). In extreme forms the array is broader than tall with long, arching proximal branches. Hairier plants can be similar in appearance to S. altissima; the latter is usually not glandular and is much hairier. Glabrate plants of var. salebrosa can be difficult to distinguish from hexaploid S. gigantea near and in the mountains from Alberta south to New Mexico. Glabrate plants in the mountains often treated as S. gigantea are glandular and belong in S. lepida var. salebrosa. Small-headed diploids found in the Rocky Mountains from southern British Columbia to Colorado are usually sparsely glandular and could be confused with short-array forms of S. elongata.

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