Crassula perforata

Crassula perforata, also known as String of Buttons, is a type of succulent shrub native to South Africa's Eastern Cape. It is a tender, creeping, evergreen perennial that grows in almost any soil, from sandy to clay. Crassula perforata have plump, green-gray leaves that form neat spirals or whorls and are 3–5 mm long with a small notch on the margins. The flowers are small and star-like, appearing in spring.