| Reported in | Status | Registered by | ||
|---|---|---|---|---|
| Rhizobium azibense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium arsenicireducens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium arenae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium aquaticum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium anhuiense | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium alvei | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium altiplani | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium alamii | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium aggregatum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium aethiopicum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium aegyptiacum | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobium acidisoli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter profundi | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter gummiphilus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter fulvus | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter dauci T | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter bergeniae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rhizobacter | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera tuosuensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera tilapiae | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera texasensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera tangshanensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera soli | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera sediminis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera salexigens | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera riviphila | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera perlucida | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera pacifica | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera nanhaiensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago | |
| Rheinheimera muenzenbergensis | Unknown | Valid (ICNP) | Excubia bot about 3 years ago |