Euphorbia trigona cultivar.
There are a number of cultivars known as ‘Red Milk Bush’ including ‘Red Leaf’,
‘Rubra’ and ‘Royal Red’.
The erect stems do not branch as much as the parent plant.
They have 3 or 4 wings down the stems.
The spines, up to 5 mm long are in pairs down the wing edges.
Depending on the amount of the sunlight it gets the stems and leaves can be
dappled with red or the whole plant can be a purplish-red or magenta.