Plectranthus saccatus var. longitubus is a soft shrub growing erect to 1,2 m in height or spreading. The much-branched stems are succulent, woody at the base.
A semi-shade plant, the leaves are thin to semi-succulent, dark and shiny and sometimes hairy. Leaf-shape is ovate with acutely pointed tips and large angular teeth along the margins. There are gland dots on the lower surfaces of the leaves.
The species distribution is in the Eastern Cape and KwaZulu-Natal. The habitat is rocky places and forests. This variety is not considered to be threatened in its habitat early in the twenty first century (Pooley, 1998; www.redlist.sanbi.org).