Hybridizes with : Common Rock-Rose (Helianthemum nummularium) to produce Helianthemum × sulphureum which has intermediately-coloured pale-yellow petals (sulphur-coloured) with leaves also intermediate in character. This hybrid is highly fertile; some garden cultivars are of such hybrids.

Flowers have some similarities to : white Roses but they are without thorns and very low under-shrubs, being somewhat woody in parts.

Many similarities to : Common Rock-Rose (Helianthemum nummularium) but these have deep-yellow petals (rather than white petals), slightly broader leaves, the leaves being hairless above and downy underneath) (rather than downy white on the top surface).

Uniquely identifiable characteristics

Distinguishing Feature :

No relation to : Roses such as Field Rose (Rosa arvensis) [a plant with similar name which belongs to the Rosaceae].

This plant is very rare, appearing in less that 5 hectads now appearing only near the coast of North Somerset and South Devon. It grows in dry limestone grassland and is native.