I get it. The flag for Hemerocallis led me to another thread, also interesting:https://forum.inaturalist.org/t/suggestion-allow-hybrids-that-specify-a-genus-only/9739/7
I’m surprised to find both
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:376335-1
and
https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77219767-1
actually in POWO, I guess because a publisher was able to specify two species as parents of the cross. Both look to have been published in horticultural settings, the Pelargonium all the way back in 1789 and the Arctotis in 1932.