Wall Lizard and Wallpepper Sedum acre

Sedum acre, the Goldmoss Stonecrop, Goldmoss Sedum, Biting Stonecrop or Wallpepper, is a perennial plant native to Europe, but also naturalised in North America. This plant grows as a creeping ground cover, often in dry sandy soil, but also in the cracks of masonry. It grows well in poor soils, sand, rock gardens,and rich dirt; and in a variety of light conditions. It does not thrive in dense shade with limited water. The leaves are simple, smooth-margined, and succulent. The flowers are yellow, Spring-blooming, in sprays held above the foliage. It spreads when allowed to do so, but is easily removed as it has shallow roots. from wikipedia ( dutch name: muurpeper)