Define and explain the term: $Genus$.

(N/A) $Genus$ is a taxonomic category that comprises a group of related species which have more characters in common in comparison to species of other genera.
We can say that genera are aggregates of closely related species.
For example,$Solanum$ is a genus that includes several species such as $Solanum$ $nigrum$ (black nightshade),$Solanum$ $melongena$ (brinjal),and $Solanum$ $tuberosum$ (potato).