acantha
backgrounds
barb
beautiful
beauty
blooming
blossom
botany
brightly
bur
burdock
burr
close
closeup
cocklebur
color
flora
floral
flower
foreground
fur
grass
green
irritation
macro
medicine
nature
petal
pike
plant
prick
prickle
purple
season
sharp
spicule
spikes
spine
summer
thistle
thorn
uncultivated
weed