[10] The type specimen was collected by Charles Sturt during his expedition into Central Australia (1844 to 1846), and is held by the Natural History Museum, London.

[11] Brown observed that the identification of the species was based on a single specimen which was imperfect in its leaves and stem, however, had sufficient fruits.

[13] Bentham thought that Mueller had overlooked the dioecious character of the plant, and taking into account the inflorescence being head-shaped (capitate), appeared to belong to the genus Spinifex.

However, Bentham did note the discrepancy from Spinifex due to the small size of spikelets and the lack of long spines.

[2] Firstly, Blake noted that inflorescences in Spinifex are less densely head-shaped and considerably larger.

Finally, in Spinifex the mature flowers disarticulate in their entirety from the plant, while in Zygochloa the heads appear to break up.