Radicans - Echinodorus Cordifolius

 Radicans is a relatively fast growing Echinodorus best suited to tall aquariums but don't be afraid to try it in a smaller aquarium.  It will grow tall spreading its top leaves just underneath the surface of the water.  It is fairly tolerant of most water conditions but does need strong light to flourish.  It is also known as Spade Leaf Sword.