Sieversia

Sieversia is a genus of flowering plants in the rose family (Rosaceae). These plants are commonly known as avens, although this name is also applied to other genera within the Rosaceae family. Sieversia species are typically herbaceous perennials, often found in mountainous or alpine regions of North America, Asia, and Europe.

The genus is characterized by its pinnately compound basal leaves and erect flowering stems. The flowers are generally small and can be white, yellow, red, or purple, depending on the species. They typically have five petals and numerous stamens. The fruits are achenes, often with persistent styles that can aid in seed dispersal.

Sieversia species play a role in their native ecosystems, often providing food and habitat for insects and other wildlife. Some species are also used in traditional medicine for their purported medicinal properties. Several species are also cultivated as ornamental plants in gardens, valued for their attractive foliage and flowers.

The taxonomy of Sieversia has been subject to revisions, with some species formerly classified in Sieversia now placed in other genera, such as Geum. This highlights the complex relationships within the Rosaceae family and the ongoing efforts to refine plant classifications based on morphological and genetic data.