Common chickweed  (Stellaria media)

Common chickweed is a very common weed (3). It is extremely variable in its appearance, but generally it has a very slender tap root and greatly branching leafy stems, which lie along the ground (2). The lower leaves vary in size from 3 to 20 mm in length, they are oval in shape and have long stalks; the upper leaves tend to be larger (up to 25 mm in length) and lack stalks. Many small, white flowers are produced; the stamens have reddish-violet anthers (2).