Tropica Marsilea minuta 1-2-Grow

Formerly traded as M. crenata

This small fern comes from Asia, where it often grows in rice fields. The leaves are tiny and rarely wider than 0.5 cm. 
A hardy plant that tolerates poor light conditions and high temperatures. However, improved conditions are beneficial to its development. Planted in small bundles that spread with offshoots. Creates a 1-3cm high and close carpet, well anchored in the bottom layer.