The pale cream flowers of Thesium euphorbioides grow in small, few-flowered cymes arranged in head-like clusters at stem tips. The flowers are small, only about 3 mm in diameter, subtended by yellowish bracts, broad and leaf-like.
Some greenish buds are visible here, their flower lobes still cohering. In the open flowers the five triangular lobes are almost white on their inside surfaces. The species lacks the bearded appendages found on many other Thesium flower lobes. The anthers at the stamen tips appear star-like in the photo.
Flowering starts in late winter, continuing until after midsummer (Vlok and Schutte-Vlok, 2015; Manning, 2007; Bean and Johns, 2005; iNaturalist).