These plants are known as Slipper flowers or Pouch flowers due to the rounded, inflated lower lip of the blooms. They come from a range of habits in Central and South America. In the main the flowers in this genus are in shades of yellow or purple, but very often they are also spotted or splashed with contrasting colours.

Calceolaria corymbosa has lovely bright yellow 'slipper' flowers above a mat of bright green leaves.