Dryas octopetala

The flowers are produced on stalks 3–10 cm (1–4 in) long, and have eight creamy white petals – hence the specific epithet octopetala.

The feathery hairs of the seed head first appear twisted together and glossy before spreading out to an expanded ball which the wind quickly disperses.

Dryas octopetala has a widespread occurrence throughout mountainous areas where it is generally restricted to limestone outcrops.

In Great Britain, it occurs in the Pennines of Northern England, at two locations in the Snowdonia region of North Wales, and more widely in the Scottish Highlands.

It grows in dry localities where snow melts early, on gravel and rocky barrens, forming a distinct heath community on calcareous soils.