Plectorrhiza tridentata, commonly known as the common tangle orchid,[2] is an epiphytic or lithophytic orchid that has many coarse, tangled roots, up to twenty egg-shaped leaves and up to fifteen green or brown, star-shaped flowers with a white labellum.

It grows on rainforest trees and in other humid places and occurs between the Daintree National Park in Queensland and the far north-eastern corner of Victoria.Plectorrhiza tridentata is an epiphytic or lithophytic herb with a single main flattened stem, 100–300 millimetres (3.9–12 in) long suspended by one to a few of its many tangled aerial roots.

[2][3][4][5][6] The common tangle orchid was first formally described in 1838 by John Lindley who gave it the name Cleisostoma tridentatum and published the description in Edwards's Botanical Register.

[9] The specific epithet (tridentata) is derived from the Latin word tridens meaning "a fork with three tines".

[10] Plectorrhiza tridentata usually grows on trees in humid places such as deep gullies and swamps.