Wolffia angusta

Description

Wolffia angusta is a species of flowering plant in the Araceae family. It has been listed by the Guinness Book of World Records as the smallest flowering plant on record, measuring 0.6 millimetres (0.0236 in) in length and 0.33 mm (0.013 in) in width. However, more recently Wolffia globosa has been described as the smallest, at 0.1–0.2 mm (0.004–0.008 in) in diameter.