Gratiola viscidula originates from North America and is relatively new to the aquarium hobby.

The underwater shape with the somewhat 'thorny' appearance makes the plant very characteristic and easily recognisable.
The plant is quite easy to care for and prefers good light conditions. With frequent pruning, it can be kept very low, almost forming a carpet, but is also suitable as a dense group in the front/middle of the aquarium.

Each stem is about 1-2 cm wide and can grow over 10 cm tall. The stem branches and spreads willingly, which gives the plant a very compact appearance.