Solidago altissima, late goldenrod, is a species of goldenrod native to much of North America. It is common in much of its range, and fairly tolerant of landscapes which have been disturbed by humans. It has been introduced to many parts of the world.
S. altissima has diploid, tetraploid, and hexaploid populations and morphological variations which has generally led to classifying it into two subspecies, which roughly speaking can be identified as being from the eastern and western parts of the continent. At least in the midwest, it is common to have plants of different ploidy interspersed, with little apparent tendency for one type to dominate even a fairly local geographical area.
Within Solidago, S. altissima is part of the Solidago canadensis species complex, which is classified in the subsection Triplinervae. S. altissima has sometimes been classified as part of S. canadensis.
- "57. Solidago altissima Linnaeus", Flora of North America
- Kristy Halverson, Stephen B. Heard, John D. Nason and John O. Stireman, III (2008), "Origins, distribution, and local co-occurrence of polyploid cytotypes in Solidago altissima (Asteraceae)", American Journal of Botany 95 (1): 50–58, doi:10.3732/ajb.95.1.50
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