The white or cream flower of Pelargonium articulatum often has magenta streaks on the larger, upper petal pair, here wedge-shaped and shallowly notched at their tips. The lower three are spotless, flat-tipped, nearly oblong and out-curving. The petal markings vary in size in the species and there may be added blotches on the posterior petals of some plants.
There are seven stamens on filaments of different lengths in picture. The purplish black anthers attached at the back are flat, two-lobed and probably oblong when they were younger and still pollen-laden. No style is visible in picture.
The sepals are pale greyish and hairy (Shearing and Van Heerden, 2008; Manning and Goldblatt, 1997; Bond and Goldblatt, 1984; iNaturalist).