Euphorbias are very reminiscent of cacti with their spines and thick stems. The most popular varieties will burst out with an abundance of flowers.
There is a mind-boggling choice of succulent euphorbias, most of which are spiny plants with thick stems. The most popular is the crown of thorns (E. milii). It is grown for the red, pink, yellow, or white bracts that surround its tiny flowers throughout much of the year. It bears abundant small, green leaves. Most other euphorbias are leafless.
The sap of most euphorbias is somewhat toxic if ingested or put into contact with the eyes.