Othonna is a genus of evergreen or deciduous geophytes, dwarf succulents or shrubs belonging to the sunflower family Asteraceae. The genus includes more than 100 species concentrated in the Western Cape of South Africa and southern Namibia. A few species occur in summer rainfall parts of southern Africa. The genus is closely allied to Senecio and can be distinguished principally by details of the involucre. Taxonomically they are in need of a modern revision.

Othonna euphorbioides, commonly known as Spiny Othonna in English and Doringkers in Afrikaans, is a thorny, yet charming, mound-forming species of Othonna with striking yellow flowers to brighten your garden in the cold winter days. Othonna euphorbioides is a small, deciduous, succulent shrublet, up to 150 mm tall. It has a short, swollen, succulent stem, up to 300 mm thick and usually covered in a tough, peeling, yellowish grey bark. Leaves are annual, succulent, crowded at the tips of the branches, oblanceolate-obovate in outline, up to 15 mm long and 30 m wide, narrowed to a petiole-like base, woolly in axils.