The taxonomic category 'Family' comprises __________.

Step-by-step solution

In the taxonomic hierarchy, a family is a category that comprises a group of related genera with still less number of similarities as compared to genus and species. For example, three different genera Solanum, Petunia and Datura are placed in the family Solanaceae. A group of closely related species constitutes a genus, a group of related families constitutes an order, and a group of related orders constitutes a class. Answer: a group of related genera