The String-of-Beads plant.
I had never seen one in flower before!
This was part of the private collection of cacti and succulents at Manor Nursery, Angmering, West Sussex. The collection was started in 1948. The nursery is now gone. The collection has been dispersed to various new locations.
Senecio rowleyanus, commonly called String-of-Pearls or String-of-Beads, is a flowering plant in the family Asteraceae. It is native to southwest Africa. S. rowleyanus grows long, trailing stems of spherical leaves. The flowers are pale and brushlike. It is cultivated indoors as an ornamental plant for hanging baskets. The fleshy leaves are poisonous and should not be consumed.