English: Xylocopa caffra is probably the most familiar carpenter bee in the Western Cape of South Africa. Note that it is now regarded as being in the family Apidae, in which the Anthophoridae now are included.
Orphium frutescens is a coastal fynbos plant in the family Gentianaceae. It grows along the coast of the south western Cape of South Africa. Its flowers are a cheerful, glossy pink with golden stamens, avidly visited by pollinators. It is a short-lived perennial that self-seeds even on unpromising soil, though it really does best on dune sands. As it happens, this species of plant and this bee have a mutually beneficial adaptation; the ripe anthers do not release their pollen till they sense a vibration of a frequency close to that of the wings of this species of bee, then they release it explosively over the bee. The bee in turn collects the pollen for its larvae, disseminating some of it in her visits to more flowers. The anthers can be stimulated to release their pollen by stimulating them with a suitable tuning fork.