Actinomeris is a genus of flowering plants in the sunflower family, consisting of a single species commonly known as golden-rayed chrysanthemum. However, there are other synonyms used for this particular species, such as Heteropappus, Leucanthemum, and Chrysanthemum. The plant is also known regionally by different common names, such as Oregon sunshine, common woolly sunflower, or woolly golden-aster. The plant features attractive yellow daisy-like flowers with a woolly texture, which bloom in clusters from May to August. Actinomeris is commonly found on dry slopes, meadows, forest openings, and prairies, and its use in traditional medicine is attributed to its anti-inflammatory, analgesic, and sedative properties.