Solanum tomentosum flowers grow stalked in small, axillary or stem-tip clusters. The mauve to purple, sometimes white flowers have spreading corollas, in picture slightly convex. Flower diameter is from about 10 mm to 15 mm.
The five stamens grow from the mouth of the corolla tube, their filaments short. The conspicuous, yellow, oblong anthers cohere erectly over the flower centre, in picture slightly curving sideways.
Flowering happens from late winter to spring (Curtis-Scott, et al, 2020; Vlok and Schutte-Vlok, 2015; Shearing and Van Heerden, 2008; Manning, 2007; iNaturalist).