Comprehensive Scheme for Standardized Abbreviation of Usable Plant-Family Names and Type-Based Suprafamilial Names
| Abbr |
Family |
|---|---|
| OROB | Orobanchaceae |
| ORON | Orontiaceae |
| ORTE | Ortegaceae |
| ORYZ | Oryzaceae |
| OSMU | Osmundaceae |
| OSYR | Osyridaceae |
| OXAL | Oxalidaceae |
| OXYL | Oxycladaceae |
| OXYC | Oxycoccaceae |
| OXYS | Oxystylidaceae |
| PACH | Pachysandraceae |
| PACO | Pacouriaceae |
| PAEO | Paeoniaceae |
| PAGA | Pagamaeaceae |
| PAIV | Paivaeusaceae |
| PALM | Palmae |
| PANC | Pancratiaceae |
| PAND | Pandaceae |
| PANN | Pandanaceae |
| PANG | Pangiaceae |
| PANI | Panicaceae |
| PAPA | Papaveraceae |
| PAPI | Papilionaceae |
| PAPP | Pappophoraceae |
| PAPY | Papyraceae |
