Rough-leaved Goldenrod, Swamp Goldenrod
Roundleaf Goldenrod (Solidago patula), a member of the Asteraceae (Aster Family), is a herbaceous perennial that grows 2 to 6 feet tall and has yellow flowers that bloom in the late summer and early fall from August to September. The alternate, simple leaves are obovate in shape, have serrate margins and are 2-12 inches long and 0.5 to 4 inches in width. The This plant grows in zones 3-8 and likes open areas with partial sun to partial shade and moist/wet soil. More information about this species can be found on this blog post.
Wavy-lined Emerald (Synchlora aerata)
Many butterflies, bees, wasps, flies, ants, and beetles use this plant as a nectar source, especially bees and wasps. Birds, such as the Eastern Goldfinch, eat the seeds, and some mammals eat the stems and leaves. Goldenrods in general are one of the most important nectar plants in the fall. This particular species is also used by soldier beetles.
Range of Roundleaf Goldenrod (Solidago patula) in the United States and Canada
Roundleaf Goldenrod is found in partially shaded swamps, and wetlands.
The genus name, Solidago, comes from the Latin for Solidus and ago and refers to the medicinal healing properties.
The species name, patula, which means open or spread out (wordsense.eu).