Psoralea is a genus in the legume family, Fabaceae. Although most species are poisonous, the starchy roots of P. esculenta (breadroot, tipsin, or prairie turnip) and P. hypogaea are edible. A few species form tumbleweeds. The South African species are mostly shrubs or small trees. Leaves 3-foliolate or pinnate, sometimes reduced, dotted with black or red glands, stipules clasping the stem and joined to the base of the petiole. Flowers in groups of 1-5, each subtended by a lobed cupule that is itself subtended by two bracts. All of the 50 Southern African species are fynbos.

Psoralea aphylla commonly known as Bloukeur, Bloukeurboom, Fonteinbos, Fonteinhout or Kaal-fonteinbos in Afrikaans and Leafless Fountain Bush or Naked Fountain Bush in English is a South African endemic species from the Western Cape Province. It is synonymously known as Psoralea decidua. It grows into a shrub of 1 to 3 meters tall. It has tiny scale-like leaves and branches that arch under the weight of blue scented flowers during summer.