Hybanthus calycinus

[2] The species is endemic to the south-west of Western Australia.

[2] Racemes of 5 or more mauve flowers are produced between June and October in the species' native range.

[2][3] It is commonly found in coastal areas on sandy soils in banksia woodland and shrubland communities.

[2] The species was first formally described in 1824 by botanist Augustin Pyramus de Candolle in Prodomus.

In 1876, botanist Ferdinand von Mueller transferred it to the genus Hybanthus in Fragmenta Phytographiae Australiae.