Answer:
直 CHOKU, tadachi, nao(su) - honest, fix, immediately
才 SAI - talent, genius
木 MOKU, BOKU, ki - tree
且 katsu - and
各 KAKU, onoono - each, every, various
Adding a tree (木 MOKU, BOKU, ki - tree) to these characters lets them branch out in a new direction!
植 SHOKU, u(eru), u(waru) - plant, be planted
材 ZAI - wood, material
林 RIN, hayashi - woods
査 SA - investigate
格 KAKU, KOU - standard, rule