Lygodium articulatum, commonly referred to as mangemange or Bushman's mattress, is a fern endemic to the North Island forests of New Zealand.

[1] Although the majority of the plant is found in the canopy of the surrounding forest, the roots and stem of mangemange form on the ground, meaning it cannot be classified as an epiphyte.

A common example is the behavior of Lygodium japonicum, which similarly forms dense vertical mats, that are currently highly invasive and damagin in Northern Florida.

[7] Mangemange is mainly found on the North Island of New Zealand, specifically in the Northland, Auckland, Volcanic Plateau, Gisborne and Taranaki regions.

Since it is a climbing fern that uses neighboring structures to grow, its habitat is mainly based on the distribution of other species such as the manuka and kanuka scrub, and in kauri, podocarp and broadleaved forest.