[2][3] It is a woody perennial herb that forms dense and robust tussocks with a central flowering stem.

[4][3] The basal leaves are bluish-grey, and divide three times to form long and pointed spikes.

[3] It produces 2–4 mm (0.079–0.157 in) green or yellow symmetric flowers from October to December, and 6–8 mm (0.24–0.31 in) dry fruits from November to March.

[3] Aciphylla squarrosa is the host plant for Lyperobius huttoni, the Speargrass Weevil.

[3] Aciphylla squarrosa contains the following varieties: In 2023, it was classified as At Risk – Declining.