The flowerheads of Anaxeton asperum subsp. asperum grow at stem-tips on woolly stalks that have a few sparsely scattered leaves upon them.
The inflorescence is a shallowly dome to flat-topped, corymb-shaped cluster of small flowerheads, each comprising tiny, yellow to brown florets densely together in small discs. Each flowerhead is enclosed by several rows of bracts in an ellipsoid involucre. The outer beige bracts are hairy and acutely pointed, the inner ones white and broader than the outer ones.
In the bud-phase the inflorescence is deep red to pinkish. That colour is lost when the florets open. Flowering happens throughout the year (Bean and Johns, 2005; Bond and Goldblatt, 1984; iSpot).