Erysimum kykkoticum is a species of flowering plant in the family Brassicaceae. It is endemic to the Mediterranean island of Cyprus, where it is found only in the Xeros River valley in the western Troodos Mountains. The species' range measures less than 3 hectares and its population is estimated to number less than 800 plants. Its natural habitats are Mediterranean-type shrubby vegetation and rocky areas. It is threatened by forest fires, drought, forestry, and road construction.

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