Castor oil fruits (Ricinus communis)

Castor oil fruits (Ricinus communis)

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Credit: MARIA MOSOLOVA/SCIENCE PHOTO LIBRARY

Caption: Castor oil fruits (Ricinus communis). These spiny fruits enclose highly poisonous seeds. The seeds contain ricin, an extremely toxic protein used in biological warfare. The seeds are also used to make castor oil, an effective laxative. The plant is monoecious, having separate male and female flowers on the same plant. All parts of the plant are poisonous.

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Keywords: biological, biological warfare, biology, botanical, botany, castor oil plant, chemical warfare, danger, dangerous, flowers, fruit, horticultural, horticulture, imperfect, monoecious, nature, perennial, plant, poison, poisonous, ricin, ricinus communis, seed head, spiny, terror, unisexual

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