[2] The ants rear their larvae within the rhizome for protection, and in turn, L. sinuosa receives nutritional benefit from feces and other debris left behind by the plants.

[3] Lecanopteris sinuosa belongs in the subgenus Myrmecopteris (comprising four species total),[4] which is characterized by ferns that have peltate scales and sori that are deeply immersed on the pinnae.

As the plant is young, the rhizome is solid (without cavities), but as it matures, the thin walled parenchyma cells begin to hollow.

This phylogenic relationship was determined based on a tree using parsimony and maximum likelihood combined using genetic sequences from the rbcL gene and the trnL-F non-coding region.

[4] Lecanopteris sinuosa has been identified in Malesia, Sulawesi (Celebes), Philippines, New Guinea, Moluccas, Indochina, and Vanuatu.