The leaves of Crassula pubescens subsp. pubescens are mostly basal, ranging from hairy as the specific name indicates to hairless. They are coloured green to red.
The leaves, growing in branched, poorly defined, basal rosettes, may be short, thickly succulent and roundly ovate, sometimes becoming elongated. Leaf dimensions are from 1 cm to 3 cm long by 0,5 cm to 1,5 cm wide.
The small, creamy white flowers grow in dense globose clusters at the tips of long, erect scapes. The five green to lemon yellow sepals are fleshy and pointed. The five petals have roundly ovate appendages. The flowers are only about 3 mm long.
There may be small, bract-like stem-leaves, opposite and basally fused, partly up the fleshy flower-stems.
Flowering happens from late winter to summer (Vlok and Schutte-Vlok, 2015; Bond and Goldblatt, 1984; iNaturalist; Wikipedia).