agriculture
alone
background
biology
black
botanic
botanical
bough
branch
creative
dark
death
decorative
design
dry
eco
ecology
environment
fall
floral
forest
graphic
growing
growth
icon
illustration
isolated
life
logo
logotype
lonely
mature
one
organic
outline
pictogram
plant
roots
season
shape
sign
silhouette
spring
stem
symbol
tree
trunk
whole
wood