TY - JOUR T1 - Drie slecht gekende taxa van het genus Calystegia(Convolvulaceae) in Belgiƫ JF - Dumortiera Y1 - 2012 A1 - Filip Verloove SP - 25 EP - 29 AB - Three little-known taxa of the genus Calystegia (Convolvulaceae) in Belgium. Recent fieldwork and a thorough herbarium revision have resolved some taxonomic problems within the genus Calystegia in Belgium. The enigmatic and non-native Calystegia silvatica is reliably reported for the first time. It is probably often overlooked and seems well-naturalised locally. Several additional records (including a recent one) are provided for non-native Calystegia pulchra. Finally, we ascribe pink- flowered forms of native Calystegia sepium to subsp. sepium f. colorata. A key for the identification of all Belgian taxa of the genus Calystegia is provided. VL - 100 ER -