Ajuga is a genus of flowering plants in the family Lamiaceae, commonly known as bugleweed. The plants are native to Europe, Asia, and Africa, and some species have been introduced to North America. Ajuga plants are typically low-growing and have runners that spread along the ground. They produce dense spikes of blue, purple, or pink flowers in the spring and early summer. Ajuga plants are often used as ground covers in gardens and landscaping, and some species have medicinal uses in traditional herbal medicine.