bio
biology
botanic
botanical
branch
concept
cut
cut out
cutout
dead
deforestation
earth
eco
ecological
ecology
ecosystem
energy
environment
flora
forest
graphic
green
greenery
growing
leaf
leaves
life
lumber
natural
nature
organic
oxygen
paper
planet
plant
protection
renewable
rind
save
saving
snow
tree
tree trunk
trunk
wind turbine
winter
wood
wooden