Tall Goldenrod (Solidago altissima) vs. Giant Goldenrod (Solidago gigantea)

These two tall, thicket-forming goldenrods have a large range overlap and are easily confused. Both have triple-veined leaves and similar inflorescences. They are usually easily told apart by texture of the stems and leaves. Although their habitats overlap slightly, Solidago gigantea ranges farther north, is more restricted to richer, moister habitats, and is more tolerant of shade and poor drainage. Solidago altissima is more of a generalist, ranges farther south, and occurs in a wider range of habitats, particularly ranging into drier habitats, but is not quite as tolerant of poor drainage.

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