Where are the Bow and Arrow Saplings or how do I get them?

I at least found the bow saplings now - and I figured out that you can open the house and there is a ton of stuff inside.

Arrow saplings are still a mystery though... nvm found those as well

They are small red and green trees the sice of bambus

The arrow saplings are small trees with bright green leaves . They are usually in clumps of two or three and found in the general vicinity of the bow saplings.