agriculture
background
bean
biodiesel
biology
bloom
blossom
botany
bottle
castor
castor oil
closeup
communis
cultivate
cultivation
danger
dangerous
decorative
diesel
euphorbiaceae
flower
fruit
garden
green
herbal
isolated
laxative
leaf
medical
medicinal
medicine
natural
nature
oil
oil plant
outdoor
pharmaceutical
plant
poison
poisoning
poisonous
purgative
red
ricin
ricinus
ricinus communis
seed
summer
toxic
white