Curio repens, syn. Senecio serpens, is a species of the genus Curio in the Asteraceae family. A succulent endemic to the Western Cape province of South Africa, it is typically found growing from crevices in rocky sandstone slopes. Commonly named blue chalksticks, it is used as an ornamental plant.

Scientific name: Senecio serpens
Higher classification: Curio
Rank: Species
Plant Type: Cactus - Succulents
Plant Family: Senecio
Soil Type: Sand