Een tabel ter determinatie van klaversoorten op vegetatieve kenmerken

During vegetation studies in the Netherlands by the author, a strong need was felt for a key to sterile specimens of species belonging to the genera Ononis, Melilotus, Medicago, and Trifolium. The key presented here is intended for all species of these genera that occur naturally in the Netherlands. This key should be regarded as provisional and users are asked to inform the author of corrections and improvements.