The Acanthaceae Family was named and described by Antione Laurent de Jussieu in Genera Plantarum in 1789.
Plants of the World Online lists 207 accepted genera in this family ccommonly known as the Acanthus Family. Wikipedia says the family contains “almost 250 genera and about 2,500 species.” I last updated this page on 11-22-20 and those numbers could change as updates are made.
The 2013 version of The plant list names 242 genera in this family and around that many more unresolved genera (GEEZ!!!). In the accepted genera, it listed 3,947 accepted species (plus another 74 infraspecific names). It lists a total of 4,264 synonyms (species and infraspecific names combined) and 5,211 unresolved names. The last update of The Plant List was 2013 and it is no longer maintained. The website is still a good reference and a great way to compare its data with current data to show progress.
For more information about this family of plants, please click on the links below. The links take you directly to the information about the family.