Dataset: All Collections
Taxa: Rhamnus betulifolia (Frangula betulifolia), Rhamnus betulifolia var. betulifolia (Frangula betulifolia ssp. betulifolia), Rhamnus betulifolia var. obovata (Frangula betulifolia ssp. obovata)
Search Criteria: excluding cultivated/captive occurrences