absolute
bare
bark
bounteous
bountiful
branch
breath
bush
complete
dead
dead tree
design
drawing
ecology
element
environment
existence
fertile
forest
full
green
illustration
isolated
jungle
leafs
life
living
nature
outdoor
outline
pattern
perfect
plant
plenary
productive
reproductive
rife
roots
season
seasonal
shape
silhouette
spring
tree
valid
wild
wood