These are fallen petals from a small tree that’s currently flowering beside the wall of our courtyard (and what, in fact, was casting the shadow in an earlier post). The flowers (see below) are especially popular with the local Noisy Friarbirds, which hang precariously upside-down to get at their nectar. Which is mainly why there are so many fallen petals below. And no, despite the nursery describing the plant wrongly as a ‘Chinese Rose’ when we bought it, we don’t know its real name. But that’s okay, because when you get right down to it – or more accurately upside-down to it – any friarbird would tell you (noisily) that those flowers by whatever name humans give them would taste just as sweet.
Update: For scale, each of the flowers in the grouping above are three-to-four centimetres across.