Dierama pendulum, commonly known as fairy bell, hair bell and wedding bell, is a species of Iridaceae endemic to the Eastern Cape and first collected in 1772 by the Swedish naturalist Carl Peter Thunberg near Essenbos on the Kromme River or Kromrivier which flows down the Langkloof. In 1845 the genus Dierama was established by Karl Koch (1809-1879) based on this specimen. Before that the plant had been placed in various genera including Ixia, Sparaxis and Watsonia. The species name has been misapplied to D. inyangense, D. densiflorum and to D. plowesii.