Family: Euphorbiaceae Juss.
Euphorbia aeruginosa
Distribution: Northern tip of Republic of South Africa, reaching into Zimbabwe and Mozambique. Original collection at Zoutpansberg, Lydenburg Division in Olifants River valley.
Ecology: Dry northern slopes in grass and shrubs, 200–850 m.
Description: Perennial succulent multibranched shrub growing from underground caudex, to 50 cm tall; branches rebranching above, stems 5–7.5 mm thick, subcylindrical and slightly 4–5-angled, often spirally twisted, rounded above, green to bluish green, with 2 pairs of thorns (2 lower longer) on large copper coloured thorn shield (hence its name aeruginosa = rusty). Shield 5–7 mm long and 3 mm wide. Flowers typical euphorbia cyathia, yellow, about 5 mm across, from the ends of stems, in this case monoecious. Fruit is a three-seeded explosive dehiscent capsule.
Note: Easily grown plant; not grown for the flowers but for its colourful stems. It is closely related to Euphorbia schinzii; both belonging to a large group of Euphorbia named Scolopendriae.
Propagate by cuttings as for production of seeds you need plants of both sexes.
Euphorbia aeruginosa
Euphorbia aeruginosa
Euphorbia aeruginosa
These images were taken in culture.