Large and variable group of several thousand plants that vary in both form and water requirements. Caution: Some euphorbias reseed readily, and all have milky white sap that is irritating to skin and poisonous.

Low-water examples: Mediterranean spurge (E. characias, 3-4’ x 3-4’) and E. c. spp. Wulfenii offer large clusters of flower bracts; creeping spurge (E. myrsinites, 6-12” x 12-18”); Martin euphorbia (E. x martinii & cvs, 2-3’ x 2-3’) offers a more compact shrub form than Mediterranean spurge with brown-centered chartreuse flowers.