| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| GROS-BLE-DE-GRENOBLE | POLE-RIVET[39]; | TR.TG | GBR | ||
| GRIJSE-WINTER | SEWEAAR[233]; | TR.TG | W | NLD | |
| GRIEGO | TR.TG | ESP | |||
| GREY-POLLARD | TR.TG | GBR | |||
| GREY-POLL | BLUE-CONE[39]; | TR.TG | W | GBR | |
| GREY-CONE | TR.TG | W | GBR | ||
| GRANOFORTE-DI-COSENZA | TR.TG | W | ITA | ||
| GRANO-TENERO-BIANCO | BLE-PETANIELLE-BLANCHE[39]; | TR.TG | ITA:Sicily | ||
| GRANO-SERINO-DI-SESTO-AURUNCA | BLE-BLEUATRE-L-AVEYRON[39]; BLE-NOIR-DE-MONTPELLIER[39]; BLE-PETANIELLE-NOIRE[39]; BLE-TOUZELLE-NOIR-VELOUTE[39]; POULARD-BRUN-DE-LA-VIENNE[39]; | TR.TG | S | ITA | |
| GRANO-ROSSO-B | GRANO-RUSSO-B[39]; | TR.TG | W | ITA | |
| GRANO-RUSSO-A | TR.TG | W | ITA | ||
| GRANO-NERO | TR.TG | ITA | |||
| GRANO-MORO-A | TR.TG | W | ITA | ||
| GRANO-GROSSO | BLE-PETANIELLE-BLANCHE[39]; | TR.TG | ITA | ||
| GRANO-DI-LOSANNO | BLE-GEANT-DE-SAINTE-HELENE[39]; | TR.TG | CHE | ||
| GRANO-COMUNE | TR.TG | W | ITA | ||
| GRANO-BIANCO,TR.TG | TR.TG | W | ITA | ||
| GLOCKENWEIZEN | BLE-GEANT-SAINTE-HELENE[39]; | TR.TG | CHE | ||
| GIUTA | TR.TG | W | ITA | ||
| GIGANTE-VELLOSO-DE-NAJERA | TR.TG | ESP |