This member of the Iridaceae family was described by Peter Goldblatt in 1977. It is found in the Namaqualand and Cape Province, South Africa, growing in a well drained soil with some water and lots of sun. The bulb can grow to two and a half centimetres, the plant to 35 centimetres height. The flowers are violet and yellow.
The genera name is named after Johannes Moraeus, father-in-law of Linnaeus. The species name means 'rock-dweller'.

