wild bananas

 There are 12 types of wild bananas of which 9 can be found in New Guinea, one in the Philippines, one in Malaysia and the last one apparently is of an unknown origin. The one found in Malaysia is called, " Pisang Emas " which in literal translation means ," golden Bananas" , and it can be found easily anywhere from markets to supermarkets or street vendors. It can be found in Indonesia, Thailand and Singapore including others parts of South East Asia. It's a common variety. It's extremely sweet and has a bright yellow skin.

Here's a link with more info :
http://slicesofbluesky.com/2009/08/eating-on-wild-side-pisang-mas-bananas/