Calceolaria biflora

Curious, pouched yellow flowers with dark brown spots in the throat, the common name is Slipper Flower. A pretty plant and an unusual one too, this is one that prefers lightly shaded conditions and slightly moist soil that doesn't dry out.  

Another feature of this Calceolaria is that it will self-seed where it is happy, but don't worry, it does this in a restrained way and isn't in any way invasive. The plants grow from a short, leafy clump with the little flowers dangling from 15cm (6") stems in summer, two flowers on each stem, hence the name bi - flora