IUCN threat status:

Not evaluated

Comprehensive Description

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This interesting goldenrod is one variety of a highly variable species, Solidago simplex, which has a total of about 8 varieties that are currently recognized. Most of these varieties, like Dune Goldenrod, are habitat specialists with restricted ranges. Therefore, Dune Goldenrod is the only variety that one is likely to encounter in Illinois or one of the neighboring states. Another species, Solidago speciosa (Showy Goldenrod), can be found in sandy savannas and stabilized foredunes near Lake Michigan, and it is possible to confuse depauperate specimens of this species with Dune Goldenrod. However, Showy Goldenrod has a more branched panicle with shorter peduncles, its cauline leaves vary less in size as they ascend the central stem, and its achenes are hairless. Another species, Solidago uliginosa (Bog Goldenrod), also has an appearance that is similar to Dune Goldenrod, but it inhabits wetlands. Bog Goldenrod has fewer leaves along its stems and its floral bracts (phyllaries) are yellow, rather than green or yellowish green. Other scientific names of Dune Goldenrod include the following

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© John Hilty

Source: Illinois Wildflowers

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