131104 COMMON ROCK-ROSE Helianthemum nummulariuim (Cistaceae) Height to 40cm. Attractive, branched undershrub. Found in dry grassland, mostly on calcareous soils. FLOWERS are 2.5cm across with 5 crinkly yellow petals (Jun-Sep). FRUITS are capsules. LEAVES are narrow-oval, downy white below and paired; margins slightly inrolled. STATUS-Widespread and locally common in SE and E England but scarce further N and W.