Sebaea aurea grows flat-topped clusters of flowers at stem tips. The yellow (or sometimes white) flowers are four-petalled. The four pointed green sepals are keeled, the corolla tube up to 6 mm long, but shorter than the petal lobes. The broadly elliptic spreading petals have rounded or pointed tips. Thin yellow anthers are visible above the flower centre.
S. aurea is a diplostigmatic species, which means there are to stigmas upon the style. A curious feature, apart from the usual stigma at the top, a second one is positioned at the base. The lower one might be opportune for pollen grains dropping from dining pollinators, but there might also be a readiness for the visitor that digs in more intimately.
The corolla diameter is about 1 cm. Flowering happens from midspring to early summer (Manning, 2007; Privett and Lutzeyer, 2010; iSpot).