aesculus
autumn
background
barb
brown
calories
caltrop
castor
chestnut
christmas
conker
cusp
dry
energy
fall
food
forest
fruit
green
horsenuts
ingredients
konkers
nature
nut
pattern
plant
prick
prickle
produce
prong
quill
reddish
roast
seasons
seeds
sharp
shell
spikey
spine
texture
thorn
tree
winter