Caesalpinia is in the legume family, but membership in its genus is controversial. Yes, apparently there are botanical controversies beyond the legalization of marijuana. Some sources list plants that others would rather list under Hoffmannseggia. Can you imagine? Anyway, the wood from some of these flowering shrubs is used to make violin bows, and in certain high-end exotic hardwood flooring. In case you were wondering, the Ryuku Islands trail off from the southern end of Japan and reach almost to Taiwan. You'll love this beautiful flower t-shirt!