Ajuga reptans

Ajuga reptans is commonly known as bugle, blue bugle, bugleherb, bugleweed, carpetweed, carpet bugleweed, carpet bugle, and common bugle, and traditionally (although less commonly) as St. Lawrence plant. It is an herbaceous flowering plant in the mint family Lamiaceae, native to Europe. It is also a component of purple moor grass and rush pastures, a Biodiversity Action Plan habitat in the United Kingdom. Ajuga reptans is a dense spreading groundcover with dark green leaves with purple highlights. The leaves grow 5–8 cm (2.0–3.1 in) tall. In spring the plant sends up 10–15 cm (3.9–5.9 in) tall flower stalks bearing many purple flowers. The flowers are frequently visited by flies, such as Rhingia campestris....read more on Wikipedia.