Euphorbia resinifera becomes a dense suckering succulent shrub. The stems are a light-green to gray-blue color, almost square, and covered with small brown spines arranged in cymes. It has been in cultivation in California for many years. The plant flowers in summer with small yellow blooms, the stems of which dry and become spine-like.Euphorbia resinifera makes a nice low ground cover succulent where it is hardy, and can be propagated by cuttings taken in late spring to early summer. As with most succulent and cacti cuttings, the wound needs to have time to dry and callus over; then plant the cutting in loose, well draining cactus soil and give it time to root. It can also be propagated by seed sown indoors in early spring.