In the upper reaches of the Lech, mainly coarse sand and gravel is deposited on the banks. This soil can store almost no water and although the large volumes of water from the Lech are in the immediate vicinity, dryness is the characteristic feature of the alluvial forests on the upper Lech. Lavender and purple willows as well as drought-resistant willow species are spreading. The German tamarisk is a survival specialist on the Tyrolean Lech. It has decisive advantages over other plants when it comes to regular flooding. A wide root system anchors it in the ground and its branches are very elastic, so that it is not washed away even during major floods.
German Tamarisk
Lavender willow
Purple willow