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FNA | Family List | FNA Vol. 20 | Asteraceae | Solidago | Solidago (sect. Solidago) subsect. Triplinerviae

57b. Solidago altissima Linnaeus subsp. gilvocanescens (Rydberg) Semple, Sida. 20: 1606. 2003.

Great Plains late goldenrod

Solidago canadensis Linnaeus var. gilvocanescens Rydberg, Contr. U.S. Natl. Herb. 3: 162. 1895; Doria gilvocanescens (Rydberg) Lunell; S. altissima var. gilvocanscens (Rydberg) Semple; S. canadensis subsp. gilvocanescens (Rydberg) Á. Löve & D. Löve; S. gilvocanescens (Rydberg) Smyth

Involucres usually 2–3 mm. 2n = 18, 36.

Flowering Aug–Oct. Dry to moist soils, disturbed soils, prairies, grasslands, near streams and ponds, roadsides, edges of thickets; 0–1600 m; Alta., B.C. , Man. , Ont. , Sask.; Colo., Ill., Iowa, Kans., Minn., Mo., Mont., Nebr., N.Mex., N.Dak., Okla., S.Dak., Tex., Wyo.; Mexico (Chihuahua).

Subspecies gilvocanescens replaces subsp. altissima on the Great Plains. Tetraploids of the two subspecies are difficult to distinguish.


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