Sentence:  Balsamodendron kafal (<WSD>Kafal</WSD> tree)... This tree is also a native of Arabia, where it attains to the height of twenty feet. It is there called <WSD>"kafal</WSD>". 
Meaning of the word marked with <WSD> tags:  Either of two trees of the genus "Commiphora", which yield a gum resin and a red aromatic wood.