Palisades.
a stake/tree
The best place to look for wood fence stakes would be your local lumberyards. They generally carry what you need and may even custom cut them for you.
A removable fence panel offers flexibility in controlling access and providing security. It can be easily installed by attaching it to existing fence posts or using ground stakes. To remove it, simply detach the panel from the posts or stakes.
A palisade.
A stockade is a fence formed by upright stakes or sharpened posts. It can be used to form an enclosure for animals.
Could be "Nursery Stakes"
a fence of pales or stakes set firmly in the ground,as for enclosure or defense. any of a number of pales or stakes pointed at the top and set firmly in the ground in a close row with others to form a defense.
Belmont Stakes
The Dingo Fence
A fence of bushes is called a hedge.
It is called a stile.
grapon