Mistletoe the host plant. "Viscum album" successfully parasitizes more than 200 tree and shrub species. All mistletoe species are hemiparasites, because they do perform at least a little photosynthesis for at least a short period of their life cycle. However, in some species its contribution is very nearly zero. For example, some species, such as "Viscum minimum", that parasitize succulents, commonly species of Cactaceae or Euphorbiaceae, grow largely within the host plant, with hardly more than the flower and fruit emerging. Once they have germinated and attached to the circulatory system of the host, their photosynthesis reduces so far that it
Plant-for-the-Planet name. Colin Mummert helped spearhead the Munich campaign for Plant for the Planet. After one year, 150,000 trees had been planted, and in 2008 Finkbeiner was able to reach a larger audience after he was elected to the children's board of the United Nations Environment Programme (UNEP) during the International UNEP Children's Conference in Norway. Since its creation in 2007, the organisation has developed into a worldwide movement. In August 2009, Finkbeiner spoke at the UNEP Tunza Children and Youth Conference in Daejeon, South Korea. There he promoted Plant-for-the-Planet and recruited children all around the world to promise to plant