Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Senecio is one of the largest genera of flowering plants, and despite the separation of many species into other genera it still contains over 1000 species of varied form, including leaf, stem and tuber succulents, annuals, perennials, aquatics, climbers, shrubs and small trees. Some species produce natural biocides (especially alkaloids) to deter or even kill animals that would eat them.

Senecio lanceus, commonly known as Kammiebos or Vleibos, is a South African endemic perennial growing to 2.5 metre tall found in the Eastern Cape, KwaZulu-Natal and Western Cape provinces. It has lanceolate leaves that are clasping at the base. From summer to autumn it bears yellow flowers, crowded in small clusters.