I haven't seen with yellow and red flowers before but Flora of the South West states this is one of the colour combinations that occurs.
Calyx tube shorter than upper lip, keel petal rounded.
Standard petal 9mm wide, stem 2-3mm wide in inflorescence 4mm wide at base, calyx tube 1.5mm long top lip 4mm long.
Standard petal 6mm wide, stem .9mm wide in inflorescence 1.1mm wide at base, calyx tube 2mm long top lip 2.5mm long.
Plant 1 m high; scale leaf 6 mm long; standard petal 6 mm wide; fruit 25 mm in diameter.
In the field the tops of many plants appear to have been snapped off - eaten by an animal?