Herb Directory
Castor
Alternative Name:
Ricinus
The castor-oil plant (Ricinus communis) has a captivating history. Native to tropical Africa, it has become naturalized in warm regions worldwide. Cultivated in India, China, and Brazil, it serves as the source of castor oil.
The oil-rich seeds contain ricin, one of the most toxic substances known. In temperate climates, castor plants grow as annuals, reaching 1.5 to 2.5 meters in a single season. Their giant palmate leaves are striking, but the bristly spined clusters of fruits, attractive yet toxic, are often removed before maturing.
Ancient civilizations recognized its importance, and today, castor oil remains valuable for pharmaceutical, industrial, and landscaping purposes.
Products that use this herb
