Sentence:  There are several different types of <WSD>mulga</WSD>, and Anangu know the different food which comes from them. For example, insects make a thing like a small apple on the "pakuta" (horse <WSD>mulga</WSD>). This one is good to eat but there is another one on a different sort of <WSD>mulga</WSD> which is not edible. 
Meaning of the word marked with <WSD> tags:  Any of a number of small acacia trees, especially (noshow=1), forming dense scrub in dry inland areas of Australia.