Part of their appeal is that it is no easy task for a tree to reach a hundred years and over. Very few of the thousands of seeds produced by a parent tree enjoy the right combination of genes and good fortune to grow big and old, and native tree varieties usually have the edge over outsiders in the struggle.
一般說來，要長命百歲成為巨木並不容易，母樹一年結子數萬，能夠脫穎而出的必是適應力強、遺傳基因優良，加上幾分幸運者，而原生樹種的條件往往勝外來樹種一籌。百子千孫大樹公