Now the botanists have come for “offensive” Latin binomials for plants

I’ve written quite a bit about the brouhaha over species names of plants and animals considered offensive to biologists and laypeople.

Remember first that every species has two names: the Latin binomial that is standard for the scientific literature (e.g., Passer domesticus), and the “common” name, which varies among countries (e.g., “House sparrow” in English).  Along with the present climate of trying to purify the world from words considered offensive and hurtful, scientists have been trying to purify species names, too, changing common names to conform to modern ideology.

They’ve had mixed success with animals.  Common bird names, for example, are being purified, especially when birds are named after “bad people”, like John James Audubon. Anybody who had a connection with the slave trade is toast.  In fact, some have suggested that we simply ditch all common names derived from people’s names, and use descriptors of the bird’s appearance and location.  But even that has its drawbacks. Reader Lou Jost, for instance, pointed out that there is substantial benefits to conservation to name organisms after people, both in Latin binomials and common names:

. . . .  naming species after people has always been a powerful tool that biologists have used to thank their patrons, recognize their field assistants and honour their colleagues or loved ones. This is the highest honour that an individual biologist can bestow on a person; we have very little else at our disposal. In recent years some biologists have also used the naming of species to raise funds for research and, especially, for conservation. Guedes et al. mentioned the auctioning of names by the Rainforest Trust. Fundación EcoMinga² —an Ecuadorian non-governmental organization that is managed by some of us — was the beneficiary of two naming auctions for species new to science^3,4. With these funds the foundation was able to pay for journal publication fees so that the resulting articles would be open access as well as pay for some of the logistics of the investigations. Most importantly, we were able to use the funds to help to directly conserve many hundreds of hectares of the habitats of these very same species. In many megadiverse countries of the tropics, funds for these purposes are otherwise scarce or non-existent.

And of course common names vary from language to language, so the purification process occurs only in Anglophone countries.

The debate over the Latin binomials for animals has already been settled by the International Commission on Zoological Nomenclature (ICZN), which decided that ANIMAL bibnomials will not be changed, for those Latin names are standard throughout the literature, and changing them now would seriously screw up the literature. The ICZN did suggest, however, that Latin names proposed for newly described species not be such as “would be likely to give offense on any grounds. But that is only their suggestion, not a rule.  So you could still name a species like the blind cave beetle Anophthalmus hitleri (yes, it was named in der Führer’s honor), though I doubt anybody would do that now.  As for common names, the ICZN has no authority over them, and no recommendations.  I agree with their decision not to give new Latin names to already-described species, as this would seriously confuse the scientific literature. And of course what’s considered “offensive” changes as our morality and ideology changes. Thomas Jefferson and George Washington, for instance, were slaveholders, and any Latin binomials with their names would be seen as “offensive”; as should “Washington, D.C.” site of the ill-named “Jefferson Memorial.”

But the ICZN decision goes for animals only. The botanists, on the other hand, have just decided that offensive Latin names for plants already given can be changed, and some will be changed. Click below to read the article in Nature:

Excerpts (bolding is mine):

For the first time, researchers have voted to eliminate scientific names of organisms because they are offensive. Botanists decided that more than 200 plants, fungi and algae species names should no longer contain a racial slur related to the word caffra, which is used against Black people and others mostly in southern Africa.

he changes voted on today at the International Botanical Congress in Madrid mean that plants such as the coast coral tree will, from 2026, be formally called Erythrina affra, instead of Erythrina caffra.

“We throughout had faith in the process and the majority global support of our colleagues, even though the outcome of the vote was always going to be close,” says Gideon Smith, a plant taxonomist at Nelson Mandela University (NMU) in Gqeberha, South Africa, who proposed the change along with fellow NMU taxonomist Estrela Figueiredo.

Their proposal takes species names based on the word caffra and its derivatives and replaces them with derivatives of ‘afr’ to instead recognize Africa. The measure passed in a tense secret ballot, with 351 votes in favour against 205 opposed.

Alina Freire-Fierro, a botanist at the Technical University of Cotopaxi in Latacunga, Ecuador, says it was good that the ‘caffra’ amendment was passed, because of the offence it causes. But its passage could open the door for other similar changes, she says. “This could potentially cause a lot of confusion and problems to users in many fields aside from botany.”

And that’s the rub! I can barely agree with the notion of changing “caffra” (a derivative of “kaffir”, a deeply insulting term for a black African—the African equivalent of the n-word), but only because changing “caffra” as the species name to “affra” will not cause much confusion. But in general I think the botanists, do what they will with the common names of plants (“Trumpet vine” may have to go), should go along with the ICZN, and leave Latin names of plants alone, both new and old. The damage to the scientific literature is potentially large. Yet the International Botanical Congress also seems to be vetting all newly suggested Latin names as well:

A second change to the rules for naming plants that aimed to address problematic names, such as those recognizing people who profited from the transatlantic slave trade, also passed — albeit in a watered-down form, says Kevin Thiele, a plant taxonomist at the Australia National University in Canberra, who made the proposal.

Scientists attending the Botanical Congress Nomenclature Section voted to create a special committee to deal with the ethics of names for newly described plants, fungi and algae. Species names — usually determined by the scientists who first describe them in the scientific literature — can now be rejected by the committee if deemed derogatory to a group of people. But this applies only to species names given after 2026, not to historical names that Thiele and others would like to see eliminated.

Still, this opens the door to Pecksniffian policing of plant names. I am not comfortable with someone vetting all suggested new binomials for offense, as “offense” is a slippery word, and a mere suggestion (like the ICZN’s) should suffice for guidance.  As for changing older names, well, the botanists have created a slippery slope here. If they can change one name, they might change others, as was suggested by Thiele in an earlier article:

Kevin Thiele, a plant taxonomist at the Australia National University in Canberra, expects that, if his proposal to create a mechanism to remove offensive names is approved, a relatively small number of species names would change. It’s likely that the argument for stability in species names would be outweighed only in cases in which plants are named after “sufficiently egregious” individuals, he says.

One change Thiele would like to see is to a genus of flowering shrubs, most of which have yellow blooms and are found in Australia, called Hibbertia, with new species routinely discovered. They are named after George Hibbert, an eighteenth-century English merchant who profited from the slave trade and fought abolition. “There should be a way of dealing with cases like Hibbert,” he says.

You know how these things go.  Once “caffra” is changed to “affra”, people like Thiele will create a movement to change older species names not derived from “kaffir”, because, after all, opposing changing the names of plants named after those in the slave trade (or who did other bad things) would be considered racist, and who wants to be called a racist? (Note that even the vote for “caffra”—>”affra” was pretty close.)  It is the loudest people, even when they’re in the minority, who ultimately win in this kind of endeavor.

These acts are performative only, for offensive species names don’t seem to affect whether people go into botany or zoology because of offensive Latin binomials (I haven’t heard of a single case). The Botanical Congress should simply make a suggestion to avoid offensive Latin binomials and then keep its sticky fingers off names that botanists suggests for new plants. And, after making the “caffra” change, they should vow that this one change will be the only older species name to be changed, and will also be the last one.

h/t: Ginger K.