Euphorbia is a very large and diverse genus of flowering plants, commonly called spurge, in the spurge family. A characteristic of Euphorbias are the showy bracts. These are a leaf, modified to look like flowers and help attract pollinators. But the real flower is called a cyathia and is the tiny group of true flowers right in the middle. Euphorbias enjoy a sunny or part shaded position in well drained, moist soil.