Observations sur le rosmarineto-lithospermetum schoenetosum du Bas-Languedoc

An account is given of some aspects of a mediterranean shrubvegetation. Attention has been paid to its floristical composition, its peculiar structure (partly due to an abnormal kind of tussock formation by Schoenus nigricans), its soil, its root-systems and its dynamism. This vegetation indicates imminent gully erosion and the presence of soft impermeable marls at shallow depth.