Photographer & Copyright

© Michael J. Papay

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CC BY 4.0

Inclusion in Plant ID / Comparison Guides

This photo is featured in 2 plant ID/comparison guides:

collage of Giant Goldenrod and Early Goldenrod

Giant Goldenrod (Solidago gigantea) vs. Early Goldenrod (Solidago juncea)

Updated February 7th, 2025

These two goldenrods are sometimes confused, as both tend to bloom earlier and have relatively smooth stems and foliage. Both occur in sun to partial shade, but they otherwise have little habitat overlap. They are usually easily distinguished by growth habit, and they have numerous other differences. S. gigantea ranges much farther west and south, is more restricted to moist sites with richer soil, tolerates flooding and poor drainage, and is more competitive against tall herbaceous vegetation. S. juncea prefers drier sites where competing vegetation is sparser, and is more demanding of good drainage.

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collage of Canada Goldenrod and Giant Goldenrod

Canada Goldenrod (Solidago canadensis) vs. Giant Goldenrod (Solidago gigantea)

Updated January 17th, 2025

These two tall, rhizomatous goldenrods are easily confused as many of their traits are overlapping and S. gigantea occurs through nearly the entire range of S. canadensis. They are usually easily distinguished by their stems. S. gigantea also has larger flowerheads with longer involucres, larger rays, and more disc florets. S. gigantea ranges much farther south and west and prefers wetter habitats, whereas S. canadensis is more restricted to the northeast and prefers mesic conditions.

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