Oedera uniflora ("Kalksteenperdekaroo") is a prickly shrublet belonging to the family Asteraceae.

Oedera uniflora is a small shrublet, with extremely sticky leaves, arranged in four clear ranks.

Each leaf has a tip that is slightly hooked downwards, and a clear basal abscission line.

It can resemble Oedera garnotii, but the latter species has leaves in an imbricate arrangement, each is straight with a longitudinal groove.

[3] It usually grows in coastal limestones or sands, as well as on rocky shale hill slopes.