Slender speedwell

V. filiformis is a rhizomatous perennial herb producing mats of hairy stems that readily root at nodes that touch substrate. It is self-sterileand rarely seeds, being spread by stolons. The corolla of V. filiformis is four-lobed and blueish with a white tip, around 8–10 mm in diameter, the top lobe being largest since it is actually a fusion of two lobes. At the center are two long, protruding stamens. Solitary flowers occur in leaf axils. They are on relatively long, slender stalks that arise from the leaf axils, and appear between April and July. The leaves, found near the base of the stem, are 5–10 mm across, rounded or kidney-shaped with blunt teeth and short stalks, and smaller on distal parts.It is perennial. In Ireland, the plant was sewn into the clothing of travellers for good luck.