Nameless Tree: flower and leaf of this tree change greatly through whole year, it cannot be verified from plant family, so, the local folks call it "Nameless Tree".

无名树――此树由于四季花叶变化无常，且在植物科目内无从查证，故当地人称之为“无名树”。

youdao

Suddenly a change came over the tree.

VOA: special.2009.11.15

As apes change from tree-dwellers to ground-dwellers, much must change.

ECONOMIST: A master of evolution takes a last long look at Darwin

The report also says that the composition of the world's forests is likely to change because some tree species will not be able to move northwards (or to higher altitudes) to escape the encroaching warmth.

BBC: Climate change warning

The tree planting is part of a climate change project between the Welsh and Ugandan governments.

BBC: Welsh support for tree planting project in Uganda