Crinum calamistratum from West Africa is a very graceful bulbous plant with dark-green, very narrow leaves. The curly leaves becomes 40-120 cm long. It forms smaller bulbs than the other Crinum-species, and requires less light.
In the aquarium plants that are thriving form a number of small bulbs. It is not eaten by herbivorous fish. It can also be used in brackish aquariums with low salt concentrations.
 
Source : Tropica