Malephora, belonging to the Aizoaceae family, is a genus of succulent plants in the ice plant family. There are 13 to 17 species in the genus, many of which are known commonly as mesembs. They are native to Africa. During the apartheid era, South African scientists used it to create a chemical poison.

Malephora thunbergii, synonymously known as Corpuscularia thunbergii, Crocanthus thunbergii, Hymenocyclus thunbergii, Mesembryanthemum leave or Mesembryanthemum thunbergii, is a South African endemic species found in the Eastern Cape province. Malephora thunbergii grows in an area of the country that receives both winter and summer rainfall. Therefore, it produces flowers during both those seasons. The yellow flowers are quite striking and shimmers in sunlight, attracting bees and butterflies.