Populus Tremuloides To purchase Populus Tremuloides and other homeopathic remedies online, please click the button above. Remedy info unavailable. Populus Tremuloides is available to buy through our online shop from WHP in USA, Hylands in USA, Weleda in UK (not for export), Helios, Europe, by clicking the red 'View Purchase Options' button. Alternative names, keywords, and common mis-spellings Populus Trem, Populus Tremul