This Ebracteola fulleri flower performing close to the gravel shows its cohesive bunch of dull yellow anthers up top in the flower centre. A few of the usual sterile stamens, staminodes that lack anthers, are curving out as they normally do around the stamens.
The club-shaped petals, all similar but few identical, seem too many to be called one singular whorl, their tips not fitting into a ring. The gaps between the white bases suggests sparseness, denying the possibility of multiple whorls.
And not all the petals made it to full length, raising the issue of long staminodes versus short petals that sometimes look similar, but not here (Williamson, 2010; Smith, et al, 1998; iNaturalist).