Photographs: Ballingeary, Co.Cork
Small 4-petalled white flowers in wide panicles. Fruit smooth, black.
4,5 or 6 leaves in a whorl with backward-pointing prickles on leaf edges. Stems trailing / erect, hairless. Leaves turn black when drying. Height: To 80cm.
Very common. Marshes, ponds, ditches, damp lawns and waste ground.
Similar: Fen Bedstraw, G. uliginosum. Leaves with mucronate tips.
Occasional in calcareous bogs and fens.