a genus of herb having only one known species: castor-oil plant
造句
用作名詞(n.)
The results suggest that in the north drought region of China, there was much high potential of Ricinus communis as an energy plant. 可以認為，野生蓖麻的植株和種子中含油量都較高，抗旱性強，是一種有希望的野生能源植物。