Sources: IPNI,[1] AFPD[2] Curio ficoides, syn.
The leaves are blue-green to blue grey, pruinose, succulent, erect, tapering and flattened laterally, with translucent lines down both sides.
The flower capitula have no ray florets, and appear on a terminal, branching inflorescence.
It is easily confused with Curio talinoides, which has a similar growth habit.
[3] Media related to Curio ficoides at Wikimedia Commons