Wolffia angusta

Species of duckweed

Wolffia angusta is a species of flowering plant in the family Araceae. 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.

This keyword could refer to multiple things. Here are some suggestions: