Rock rose leaf hairs. Coloured scanning electron micrograph (SEM) of the leaf hairs of a rock, or sun, rose (Cistus albidus). These trichomes guard the leaf against attack by pests, the glandular hair (centre) producing defensive chemicals, while the other hairs (green, spiny) offer mechanical protection. Rock roses are evergreen shrubs from the Iberian Peninsula and around the Mediterranean Sea. Magnification: x100 at 6x7cm size. x150 at 4x5"~LANDSCAPE"