Major Oak
From Tardis Wiki, the free Doctor Who reference
The Major Oak of Sherwood Forest was the last surviving oak tree by 2050, where it was kept on display in a museum in London. This tree was stolen by a Centuripede and used to build a pod for her eggs. After Starkey and K9 helped save her eggs from Drake's bomb, she rewarded them by saving their lives and giving them the acorns she had saved from Robin Hood's time. (TV: The Last Oak Tree)
