Translations:Benutzer:Arian/Klett-Mini-Test/1624/en

The Rhizome-Root Sphere, Vegetative and Generative Propagation

The vertical vegetative shoot continues in just such a sequence of stem-joints down into the depths of the earth (Figure 34, p. 449). Where it meets a waterlogging horizon — for instance at the boundary of the A-horizon (living topsoil) to the more clay-rich B-horizon (subsoil), or at groundwater — a lateral shoot branches off, growing on horizontally, following the boundary of the perched water.