Aponogeton crispis is a small aquatic plant native to Sri Lanka and popular in aquariums. It has a rosette of stiff, crisp leaves that are light green to dark green in color. The leaves grow to a maximum size of around 6 inches in length and 3 inches in width. Its flower stalk grows to a height of about 10 inches, bearing small white flowers. Aponogeton crispis is a low maintenance plant that does not require extra fertilization or supplemental lighting in order to thrive. It is a great choice for an aquarium as it will not take up too much space and is relatively hardy.