New records of four synanthropic plants found in southern Africa

Four adventive synanthropic plant species of Holarctic origin are recorded for the first time from southern Africa. These are Conyza albida Sprengel, Stellaria pallida (Dumort.) Pire, Sagina apetala Ard. and Sagina maritima G. Don fil. They occupy human disturbed habitats such as road sides and cracks in pavements in urban areas.