| Family: | Rhamnaceae |
| Genus: | Frangula (FRANG-yoo-luh) (Info) |
| Species: | alnus (AL-nus) (Info) |
| Cultivar: | Ron Williams |
| Additional cultivar information: | (PP14791, aka Fine Line?Ron Williams) |
| Hybridized | by R. Williams |
| Registered or introduced: | 2003 |
| Synonym: | Rhamnus frangula |
| Synonym: | Rhamnus frangus var. angustifolia |