Taeniophyllum lobatum, commonly known as yellow ribbonroot, is a species of leafless epiphytic or lithophytic orchid that forms small clumps. It has short stems, flattened pale to greyish green roots pressed against the substrate on which it is growing and usually two pale to bright yellow flowers. It only occurs in tropical North Queensland.
Taeniophyllum lobatum is a leafless, epiphytic or lithophytic herb that forms small clumps. It has a stem about long, and flattened pale to greyish green, photosynthetic roots that are long and wide pressed against the substrate. Two pale to bright yellow, resupinate flowers about long and wide are borne on a hairy white flowering stem long. The sepals and petals spread widely apart and are about long and wide with hairs near the base of their outer side. The labellum is boat-shaped, about long and wide three lobes. The side lobes are erect, curve inwards and touch. The middle lobe has a cylindrical spur about long. Flowering occurs from August to November.
Taeniophyllum lobatum was first formally described in 1956 by Alick Dockrill and the description was published in The Victorian Naturalist. The specific epithet (lobatum) is derived from the Latin word lobus meaning "an elongated projection or protuberance", referring to "the large lateral lobes of the labellum".
Yellow ribbonroot mostly grows on the smallest branches of rainforest trees sometimes on rocks. It is found between the McIlwraith Range and Paluma in Queensland.