Streptocarpus glandulosissimus is part of a cluster of similar species that grow in the moist tropical environments of East Central and East Tropical Africa. It is usually a scrambling subshrub with weak and succulent stems growing through bushes. It can also be epiphytic.

S. glandulosissimus is difficult to distinguish from its close relative S. holstii. The former has a more extended range within tropical East Africa, including Tanzania, Uganda, Rwanda and others, while S. holstii is restricted to the East Usambara Mountains of Tanzania. One of the principal features distinguishing the species is the structure of the flowers. S. holstii has truly personate flowers, which means that the throat is almost totally closed off by the lower corolla lobes, which jut forward at an angle that can approach ninety degrees. It is assumed that an insect landing on the jutting lower lobes will cause the throat to open, allowing access to nectar lower in the tube. S. glandulosissimus has lower lobes that angle more downward, and do not fully obstruct the throat. This difference implies different pollinators. The flowers of S. holstii are usually, but not always, somewhat larger.

• A beautiful whole show plant bearing the flowers in the feature photo above
• Plants growing in Tanzania
• A plant growing in Uganda, with a distinctly different colored flower
• A plant growing in Rwanda with a purple flower
• A composite photo illustrating the differences in the flowers of S. glandulosissimus and S. holstii