Common Chickweed - Stellaria media
Low to short, often semi prostrate plant, stems with a line of hairs that changes sides at each pair of leaves. Flowers white, 8 to 10 mm with 3 styles, petals bifid.
Other chickweeds, especially S neglecta, S alsine, S pallida, and Myosoton (Stellaria) aquaticum

5 petals, split so there appears to be 10; 3 styles; 1 line of hairs down stems between nodes; 3 - 5 (sometimes 8) stamens.
Details of flowers and stems
Cultivated land, roadside verges, farmyards, etc.
Annual.
Very common throughout Britain.
Very common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 605 of the 617 tetrads.
In the current checklist (Jeeves, 2011) it is listed as frequent
Leicestershire & Rutland Map
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MAP KEY:
Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015