Real funny looking plant to me. I was just walking around outside today and there it was. My photos are a little blurry. I will try to take better pictures tomorrow. Looks like there are two different types of leaves going up a single stalk then there are triangular shaped pods as you can see in the second photo. What is this?
Euphorbia lathyris (Caper Spurge) or a close relative. An invasive weed in many areas, and very poisonous if eaten.
The leaves do look a little too linear for E. lathyrus but is definitely something similar. While I definitely don't recommend eating it, it has a very caustic/abrasive sap that can also cause damage if rubbed in eyes (also hazardous to fish if you've got it near a pond or something). I think there's a thread somewhere on this forum where the exact nature of its toxicity was discussed.
It certainly is an unusual/interesting looking plant. It really caught my eye. It must be the Floridana variety. According to the usda website it is found in Fl, GA, AL and MS. http://tinyurl.com/yoktwg
