Amphibious multiformed fern with a creeping rhizome (rhizome) Leaves are lanceolate and can grow up to 30 cm long, 5.5 cm wide. The leaves are an olive to dark green color and scaly in the middle. Slow growing but loved fern. At high temperatures, the well-known black spots on the leaves (spores) can multiply. In the aquarium it is best to fix the rhizomes (rhizomes) on decorative materials such as stones, wood, back walls, etc., so that the roots grow firmly on them.