Arabidopsis thaliana

Arabidopsis thaliana is a sessile eukaryote that produces flowers. It has practically no nutritional or psychoactive value, and is basically only used in plant biology research, where it is widely studied as a model organism. In horticulture, it is considered a weed.

The plant's common names in English include "thale cress" and "mouse-ear cress," although among researchers it is often called simply "Arabidopsis." It is native to Eurasia and North Africa, although it has also managed to become naturalized in the Americas and Australia as well, and has been taken to the Moon.