The scale-like, knob-like or granular leaves of Phaenocoma prolifera are closely spaced. They grow overlapping on short sideshoots. The small leaves are about 2 mm long.
The leafy sidebranchlets grow at right angles from the stiff, woody stems that become white and woolly. Each branchlet is subtended by a brown bract (Vlok and Schutte-Vlok, 2015; Manning, 2007; Bean and Johns, 2005; iNaturalist).