Streptocarpus stomandrus is a small subshrub from the Nguru Mountains in Tanzania. It grows primarily in the wet tropical biome, often in very well-drained locations like rocky hillsides. While shrubby, in the sense that it can have woody stems, the leaves and green stems are soft and pliable. It is known from very few locations, and is assumed to be under threat.

In cultivation, the combination of lax and woody stems means it can be grown as both a vigorous upright species and as a trailer. It is not often seen in cultivation, although it is commercially available. It is one of the parents, with S. saxorum, of the widely grown S. ‘Concord Blue’.

Note the dark markings on the lower lobe near the throat, characteristic of the species and passed on in somewhat different form to S. ‘Concord Blue’. The color of the flowers may be somewhat variable, and this shade of somewhat pinkish blue can be difficult to capture in photographs. The flower color in the feature photo above is true to life; different tones in other photos may reflect in-species variance or photographic variables.

In the most recent botanical studies on Streptocarpus, this species is allied to S. saxorum, within subg. Streptocarpella sect. Carnosifolii.

• A close of the flowers on the feature plant above
• A flowering plant in situ in Tanzania
• Plants growing on a steep well-drained slope
• A cultivated plant from Dibley’s Nursery in Wales