Goldenrod refers to a group of flowering plants in the Solidago genus, commonly found in North America, Europe, and Asia. Known for its bright yellow flower clusters that bloom in late summer and early fall, goldenrod is often used in herbal medicine, as well as in ornamental gardens for its striking appearance. Traditionally, it has been valued for its potential effects on the urinary and respiratory systems, though it has other uses as well.

Hydrangea root comes from the hydrangea plant, specifically from species such as Hydrangea arborescens, which is native to North America. The root has a history of use in traditional herbal practices, primarily for urinary tract support, although its use has expanded over time.