Smallest fruit

The smallest fruit in the world is produced by the smallest flowering plant, the floating duckweed, which belongs to the genus Wolffia. Since the entire plant body of the species is less than one millimeter long, the mature fruit takes up a large proportion of its parent plant body. The fruit in the Wolffia augusta is only 0.25 mm long (1/100th of an inch) and weighs about 70 micrograms (1/400,000 of an ounce). The plant belongs to the Lemnaceae family and is found in North and South America. This fruit is smaller than the individual cells of many plants and animals and smaller than an average, single grain of table salt.