It has a single hairy leaf and up to three pink flowers with short, spreading, fan-like sepals and petals.

[5] In 2001, Stephen Hopper and Andrew Brown reduced it to a subspecies of Caladenia nana and published the change in Nuytsia.

[1] The subspecies epithet (unita) is a Latin word meaning "united"[6] referring to the sepals' connection at their bases.

[2] The pink fan orchid is found between Perth and Bremer Bay in the Jarrah Forest, Swan Coastal Plain and Warren biogeographic regions growing in places that are swampy in winter, where it rarely flowers unless subject to bushfire in the previous summer.

unita is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.