Streptocarpus davyi is a medium sized, rosulate, perennial species, which has a very restricted distribution within an approximately 40 km radius of Mbabane, the capital of Eswatini (former Swaziland). The species occurs under and in the shade of huge granite boulders. It has light green leaves that are maximally 60 x 10 mm with a short stalk (petiolode). The whole plant has lots of hairs to catch moisture from mists.

The flowers are 15 – 20 mm long, most are white, sometimes very pale violet, and sometimes there is a yellow patch further down the corolla tube where the stamens are attached. It has not attracted much horticultural interest, but is a charming little plant that may attract the specialist and the hybridizer because it is smaller.