Cotula laxa flowerheads are about white to pale cream in colour. They are shallowly dome-shaped on top, flatter in the involucre below that curves in slightly at the bract tips to form an almost regular disc. The bract tips are membranous or papery. The flowerhead diameter is about 4 mm.
A flowerhead consists of a multitude of small, four-lobed disc florets on an involucral base, arranged in the stylish curves so often seen in composite flower and leaf structures in nature. A ring of yellow stamens are exserted where florets are currently open.
The purple, hairy flowerhead stalk is long, thickening abruptly before it joins the receptacle at the base of the flowerhead.
Flowering happens at the end of winter and the beginning of spring (Vlok and Schutte-Vlok, 2010; Le Roux, et al, 2005; iNaturalist).