Cleome or Spider Flower

Here is an illustration from around 2009 of Cleome:

These are some unique and lively-looking flowers. The first place I noticed them was on top of the mound covering the root cellar at Twin Oaks where they volunteered themselves one summer. I think the most interesting part of them is the long stamens that shoot out of each individual flower.
This flower is native to southeast South America. As I learn more about where different flowers originated, it seems as though a lot of them are from central and South America.