Lightfootia arabidifolia Wahlenbergia sarmentosa Wahlenbergia coerulea Wahlenbergia arabidifolia Campanopsis krebsii var. transvalica Wahlenbergia arguta var. parvilocula Wahlenbergia arguta var. longifusiformis Campanopsis arguta Wahlenbergia arguta
World Flora Online, accessed June 20, 2024