| namibia | caprivi region | combretum collinum subsp. gazense | subspecies | 1 | 0 |
| namibia | okavango region | combretum collinum subsp. gazense | subspecies | 2 | 0 |
| south africa | limpopo province | combretum collinum subsp. taborense | subspecies | 2 | 0 |
| south africa | mpumalanga province | combretum collinum subsp. suluense | subspecies | 2 | 0 |
| south africa | mpumalanga province | combretum collinum subsp. taborense | subspecies | 2 | 0 |