Lessertia frutescens calyx shine

The patch of bright red on the calyx of Lessertia frutescens sometimes outshines the corolla of the open flower below, darker than the petals.

The banner petal, standard or vexillum has curled-back margins that lose their colour sooner than the straighter keel below it (Vlok and Schutte-Vlok, 2015; Manning, 2007; iNaturalist).