Crassula umbella floral and blushing

Different challenges face this Crassula umbella plant than the fortunate ones with green leaves protected from an overdose of sun in shaded spots near water. Opportunities for flowering were sufficient, however, and success is celebrated, albeit in a red flush that would have signalled embarrassment in a human.

The leaves here are opposite, their margins entire. The reddish buds are globose, the open flowers have recurving, nearly white petals (Le Roux, et al, 2005; iNaturalist).