There are six rows of club-shaped, creamy yellow calli along the mid-line of the labellum.

[2] This species was first formally described in 2006 by David Jones who gave it the name Arachnorchis zephyra.

The type specimen was collected in the Carappee Hill Conservation Park and the description was published in Australian Orchid Research.

[4] The specific epithet (zephyra) means "the west wind",[2][5] referring to the westerly distribution of the species compared to that of the related and similar C.

[2] Caladenia zephyra is only known from the Eyre Peninsula botanical region of South Australia where it grows in mixed Callitris - Allocasuarina woodland, but it may have a more extensive range.