Slender-Leaf Senecio is a slender, hairless, much-branched annual herb, usually about 15-45 cm tall. The leaves are stalkless and pinnately cut.This is such a useful succulent. The linear foliage gives the garden a shot of blue all year long. The texture & color combine well with many plants. Try it with Asclepias currassavica Silky Gold for a blue & yellow garden or combine with lime green Crassula lycopodiodes for a cool color scheme. Grows to about 1 inch high & about 3 inch wide. Clip to keep compact. The flowers are inconspicuous, but S. madraliscae makes an excellent foliage plant. It can be grown as a trailing plant in a container.Senecio mandraliscae, commonly called blue finger, is a bushy succulent with bluish-green leaves.