Older leaves of Euryops tysonii may show their sunken midribs and steeply ascending lateral veins on the upper surfaces. The change makes them less smooth and probably poorer in moisture than the stem-tip leaves. Age turns them grey-green, robbed of the fresh-green youth enjoyed at the top of the stem.
The sessile leaf-bases are broad in their attachments to the pale green stems, spaced and spiralled. Further down, the stems become bare and scarred where used-up leaves drop off. Even the most secure attachment loses its grip in time (Manning, 2009; Pooley, 1998; iNaturalist).