Crassula sieberiana (Schult. & Schult.f.) Druce

Flowers in axillary clusters mixed with smaller leaves, the whole often forming a spike-like inflorescence. Sepals and petals c. 2 mm long. Ovary with 2 ovules. Succulent annual, flowering when very small but usually growing to a branching tuft up to 15 cm diam. Widespread in many situations