Philadelphus speciosus Philadelphus sharpianus Philadelphus villosus Philadelphus trinervius Philadelphus columbiensis Philadelphus dubius Philadelphus gracilis Philadelphus godokokeri Philadelphus hirsutus var. gracilis Philadelphus hirsutus var. intermedius Philadelphus hirsutus var. nanus Philadelphus sharpianus var. parviflorus Philadelphus inodorus var. hirsutus Philadelphus trinervius var. gracilis Philadelphus pubescens
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024