This Speedwell is an annual which originated in Asia, but is now established in Britain and can be considered a weed. The green, dull, hairy leaves have a serrated edge with well defined veins which radiate from the stalk. They are very similar to those of Germander Speedwell, but the flowers distinguish them.
It is easily uprooted, but fragments of stem may take root again. There may also be a reservoir of seeds which will germinate later - they have been shown to persist for at least 20 years. Hoeing of cultivated ground should discourage establishment. Weedkillers are effective and any new seedlings will require re-treatment.