Euphorbia lathyris (caper spurge) is a herb with green-yellow flowers and thin narrow leaves found in the coastal ranges, western ranges, the Central Valley, and desert ranges of California. Other names occasionally used include gopher spurge, gopher plant or mole plant. It is native to Europe. It occurs in grasslands, marshes, dunes, scrub and chaparral habitats. It spreads via seed and is dispersed by water, machinery and dumped garden waste. An annual/biennial growing to 1 3ft +. It is hardy to zone 5-9. It is in flower from May to June, and the seeds ripen from July to August. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Flies.