growin wrote: I agree. Euphorbia lathyris http://davesgarden.com/guides/pf/go/55261/
Can become very weedy in PNW. It's called a Gopher plant/spurge because the gophers hit the roots, the sap is very irritating and they stop digging in that direction.
Here's a pic of one that obviously self-seeded infront of a warehouse amongst the azaleas.