Thynninorchis huntianus (Common Elbow Orchid)

In 2002 Thynninorchis, consisting of two species, one endemic to Tasmania and one in southeastern Australia, were split from Arthrochilus by David Jones and Mark Clements. Some authorities still use the name Arthrochilus huntianus for this species.

The remaining genus of Arthrochilus are almost entirely found in northern Queensland, Northern Territory or Papua New Guinea, with the only exception being Arthrochilus prolixus which is also found in NSW from Brunswick Heads to Mona Vale.

All Arthrochilus have leaves where Thynninorchis do not; the flower structure is also different.  DNA-based molecular phylogenetic studies supported recognition of Thynninorchis as a distinct genus (Miller & Clements 2014).

Regional distribution

Thynninorchis huntianus is listed in the following regions: