Introduced variety of Common Birds-foot-Trefoil.
Yellow flowers with light-coloured keels, not flushed red or orange.
Larger leaflets. Upper stems usually hollow. Stronger more/less erect growth.
Roadsides, grass verges, waste ground. Introduced with wildflower and amenity seed mixtures. Identified by Paul Green
Common Birds-foot-trefoil (introduced variety), Lotus corniculatus var. sativus