The yellow button-like flowerheads of Pentzia incana consist of disc florets only. They resemble flowerheads of the annual herb genera Oncosiphon and Cotula, while this Pentzia is a shrub, a perennial.
Flowerheads grow solitary at stem tips well above the leaves on long, longitudinally furrowed stalks that are leafless. A flowerhead becomes 1 cm in diameter, its yellow disc somewhat flat, curving down at the perimeter in a rounded mound-shape. About three rows of fleshy, grey-green and narrow bracts subtend the flowerhead below. Flowerheads turn brown at the end of their season. They flower after rain during any season (Vlok and Schutte-Vlok, 2010; iSpot).