There's a reason why a lot of the "chicken wing" on Taobao isn't from Hainan, and is from other species (many endangered) that have the same "chicken wing" pattern when crosscut:http://en.wikipedia.org/wiki/Hainan_Ormosia
The Hainan ormosia is now extinct, like many other native tree and animal species in China. http://en.wikipedia.org/wiki/Amoy_tiger
Despite the marketing spiel a vendor may give you, there's a good chance one would be purchasing smuggled hardwood from Southeast Asia or Central Africa when buying "chicken wing." Alternatively, you'd be getting other ormosia
species, e.g., from Fujian. Some vendors will clearly state the origin of their wood, while others will obfuscate the details.
BTW, I love Chinese opium beds! I definitely need one at some point. Your room looks very nice.