Senecio Serpens a.k.a Blue Chalk Sticks (Syn: Senecio Mandraliscae), are succulent plants with elongated blue leaves that grow upwards. The blue foliage has an outstanding quality of color that is matched by few plants. Long curved, fleshy 3" - 4" leaves give this plant a sea urchin look. Makes a good contrast for other succulents in the garden. They are an excellent groundcover; commonly used in landscaping projects.