It is distinguished by its horizontally arranged flowers and unusually short sepals and petals.

The flowers are oriented horizontally, are yellow and green with red stripes, have very short petals and sepals and a rounded, fringed labellum with dark calli.

[1][2][3][4] Caladenia discoidea was first described by John Lindley in 1840 in A Sketch of the Vegetation of the Swan River Colony.

[2] The dancing spider orchid is widespread in the drier areas of the south-west between Kalbarri and Israelite Bay, growing in woodland, sometimes on the edges of salt lakes.

[3][7] Caladenia discoidea is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.