I spent the last couple of weeks in southern Spain and I saw a lot of one particular plant in bloom - links to photos below, but here’s a brief description:
It’s a wiry shrub; most large examples growing no taller than about a metre, with a spread of maybe 1.5 metres.
Foliage is somewhat succulent; leaves are needle-like - similar to Rosemary (but more fleshy)
No particular distinctive aroma when crushed - just smells like vegetation
The examples in flower were often so covered with bloom that the stems and leaves were almost completely obscured. The flowers are individually a little less than 1cm across - and varied in colour from creamy yellow through to deep magenta (I am unsure whether this is just variation from one plant to another, or if they start one colour and mature to a different colour)
The flower petals themselves were translucent and felt somewhat fleshy and moist. I regret not having looked close enough to count individual petals, but from my photos, it looks as though they might be fused anyway.
The flowers were night-scented.
The habitat was coastal scrub in a fairly arid part of Murcia, Spain.
Here are some photos in a folder on OneDrive: