BOTANY LESSON: Types of Roots A book we read earlier mentioned 3 main types of roots: fibrous roots, taproots, and adventitious roots. I already had some roots from the produce department, but The Rare Monstera Deliciosa Mint Variegated Houseplant What's that?! This is the Castor Oil Plant, also known as the Castor Bean plant. This is the plant used to produce castor oil, which has uses in medicine, cosmetics, and industry. The Plant: An Old Chicago Factory is Converted into a No Waste Food Factory Dua Lipa Channels Morticia Addams in a Black Silk Robe Vogue Carnivorous Plants: The Meat Eaters of the Plant World Think Blue Marble