Definition
A pseudobulb is a specialized storage organ found in many orchids. It's a thickened stem that stores water and nutrients for the plant. Think of it as the orchid's 'backpack' for survival. Pseudobulbs come in various shapes and sizes, depending on the orchid species. They help the orchid withstand periods of drought or nutrient scarcity. These structures ensure the orchid has reserves to draw upon when needed.