Solidago latissimifolia

Elliott's Goldenrod

Solidago latissimifolia Miller occurs in fresh and brackish swamps and thickets of the coastal plain near the Atlantic coast from Nova Scotia to Florida.  The common name is based on a long used binomial for the species S. elliottii Torrey & A. Gray; the Miller name has priority (Uttal and Porter 1988).  Involucres mostly 4–6 mm; broader phyllaries 0.7–1.2 mm wide; stems glabrous below arrays; mid cauline leaves elliptic (Semple & Cook 2006 FNA).  The species includes diploids 2n=18, tetraploids 2n=36, and hexaploids 2n=54.  It could be confused with S. rugosa, but the usually large elliptic leaves and smooth stems are diagnostic.  Semple et al. (2021) published a cytogeographic map showing the locations of published counts.