What is "threlkeldia"

'Threlkeldia ' is a genus of annuals or short-lived perennials in the family Amaranthaceae. There are two species, both of which are endemic to Australia. Together they occur in all Australian states except Queensland.

• Threlkeldia inchoata (J.M.Black) J.M.Black, which occurs in New South Wales and South Australia.
• Threlkeldia diffusa, known as Coast Bonefruit