These leaves appear to be those of Othonna hederifolia. The broadly obovate leaf is erect on its stalk, smooth, blue-green and fleshy.
The leaf margins are slightly but variably lobed, sometimes purplish and the stalks often reddish purple, not always. The whitish midrib is visible in the lower part of the leaf. The specific name, hederifolia, is derived from the Latin words hedera meaning ivy and folium meaning leaf, referring to the resemblance between these leaves and those of the ivy plant.
The leaves emerge from the sand close together from an underground caudex. The smooth flower stalk is dull grey-purple (Bond and Goldblatt, 1984; iNaturalist; www.llifle.com).