Anacampseros arachnoides bears solitary flowers or few-branched inflorescences on erect, naked pedicels, about 8 cm to 10 cm tall.
The short-lived flowers are white tinged pink or mauve, only opening in the afternoon in bright sunlight and closing before dark.
Flowering happens from late spring until after midsummer (Frandsen, 2017; Smith, et al, 2017; Bond and Goldblatt, 1984; iNaturalist).