The Smallest Plant in the World: Wolffia globosa

The smallest plant in the world is Wolffia globosa, a species of watermeal (also known as duckweed) from the genus Wolffia in the Lemnaceae family.

This tiny aquatic flowering plant measures just 0.1–0.2 mm (0.004–0.008 inches) in diameter, smaller than a grain of rice, making it the smallest known flowering plant.
Wolffia globosa has no roots, leaves, or stems; its body is a simple, oval-shaped, transparent green frond that floats on the surface of freshwater lakes, ponds, and slow-moving rivers worldwide. It reproduces both vegetatively by budding and rarely by producing the world's smallest fruits and flowers, which are barely visible even under a microscope.

Despite its minuscule size, Wolffia species are nutrient-rich, containing high levels of protein, vitamins (including B12), and minerals. They have potential as a superfood, animal feed, or even in wastewater treatment due to their rapid growth and ability to absorb pollutants. In some cultures, like Thailand (where it's called "pham"), it's consumed by humans

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