The flowers of Crassula capitella subsp. thyrsiflora are small and white. The growth form varies more in inflorescence and leaf shape than in the small white flowers themselves.
There are sometimes tiny whitish, ciliate or eyelash-like hairs along the leaf margins of C. capitella plants, found on several of the subspecies. This brings a decorative effect, attracting succulent gardeners; a bit like nectar attracts pollinators. Gardeners are not in the class of pollinators, but serve a useful purpose in proliferating the plants, albeit in subnatural conditions.
There are sometimes also scattered spots on the leaf surfaces. A large geographical distribution presents the diverse growing conditions that invite differentiation and make life more interesting.