Feijoa

  'had a taste of this strange fruit today.  It's amazingly refreshing.  The insides tastes a bit like guava and...i dunno. I can't seem to describe it. 

Feijoa

Acca sellowiana is a species of flowering plant in the myrtle family, Myrtaceae, that is native to the highlands of southern Brazil, Colombia, Uruguay, and northern Argentina.^[1] Common names include Feijoa  Pineapple Guava and Guavasteen.  Large quantities of the fruit are grown in New Zealand, where it is a popular garden tree and the fruit commonly is available in season. The New Zealand season runs from March to June.

-Wikipedia