Tree of Cheem

Forest of Cheem are an intelligent, bipedal, arboreal species that claim to be direct descendants of the tropical rainforest. Members of the Forest of Cheem appear in the Ninth Doctor episode, The End of the World by Russell T. Davies. According to the Ninth Doctor, they are of huge financial importance due to their land holdings and forests on various planets; and they have "roots" everywhere. They have a noble bearing and exhibit a respect for all forms of life. The group of Trees seen on Platform One was led by Jabe Ceth Ceth Jafe (named in Doctor Who: Monsters and Villains), and also included Coffa and Lute.

They neither respect nor understand technology, referring to computers as "metal minds" or "metal machines". They were also aware of the Time Lords and their fate in the Time War. The Doctor Who Annual 2006 classifies them as one of the higher species who were aware of the course of the war and its history-changing effects and also states that they were mortified by the bloodshed.