Wahlenbergia

Wahlenbergia is a genus of between 150 and 270 species of flowering plants in the family Campanulaceae. It is found everywhere except for North America. Most of species come from Africa and Australasia. "Wahlenbergia" species have spread widely, even to oceanic islands, and there are four species known from the island of St Helena, including the now extinct species "W. roxburghii".