The flowers of Malephora lutea grow solitary on fleshy stalks from stem tips or leaf axils, just above the leaves. They are yellow (as indicated by the Latin specific name lutea), their petals nearly linear (strap-shaped) to narrowly oblanceolate (inversely lance-shaped). There are many yellow stamens in each flower. Flower diameter is about 2,5 cm.
Flowers open in the middle of the day, better on warm, sunny days. Flowering is seen from late winter to early summer, but may occur after rain in any season (Vlok and Schutte-Vlok, 2010; Smith et al, 1998; Wikipedia).