Othonna euphorbioides

Othonna euphorbioides is a winter-growing caudiciform in the daisy family from central and northern Namaqualand in the Northern Cape, South Africa, ranging from the Kamiesberg north into the Richtersveld and east into Bushmanland. It is a shrublet 10–15 cm (rarely 30 cm) tall and broader than tall, the most cactus-like of all succulent Compositae. The caudex is potato-like, covered in a peeling yellowish-grey bark. The stiff flower stalks persist after the heads fall and become branched spines, making it resemble a spiny Euphorbia, hence the name. Spoon-shaped leaves 3–4 cm long, pale green with a white powdery bloom, cluster among the spines at the branch tips. It leafs out in autumn, bears small greenish-yellow flower heads in winter and is semi-deciduous in summer. It is listed as Least Concern on the Red List of South African plants. It is considered one of the easier Othonna to grow, and in Japan it is sold online and by specialist nurseries as a winter-growing caudex.

The Othonna euphorbioides grows to 10–15 cm (rarely 30 cm) tall, broader than tall.

It grows at about 1,000–1,600 m in cracks in granite domes and exposed rock sheets, often on a thimbleful of soil, where temperatures in the winter growing season sometimes drop below 0°C.

Light feeding in the growing season