Whorled loosestrife is a Virginia native wildflower. The name of the plant comes from both the whorl of simple leaves (usually four) that circle around an erect stem, and the whorled arrangement of the flowers, which emerge from the leaf axils. The flower has five yellow petals with a conspicuous dab of red at the center. It is just lovely! The plant grows 1-3 feet tall.
These photographs were taken at Primland Resort in Meadows of Dan, where they were growing abundantly at the edge of the woods. Also check out Fringed Loosestrife for comparison.