[...] It does that because, most likely, it is a gymnosperm, a fruitless tree. Its seeds are ovules not enclosed inside an ovary, which means that it does not n

[...] It does that because, most likely, it is a gymnosperm, a fruitless tree. Its seeds are ovules not enclosed inside an ovary, which means that it does not need to yield fruit. Sorry for the diversion: it was a question in today's Trivial Pursuit.