The hell biology isn’t binary.
We live on a binary world. And by that I mean almost every single life form that has ever existed on our planet with very few exceptions, has been binary. It is how life on Earth has evolved.
So we are talking plants, both land based and aquatic, from microscopic ferns to redwood trees. Bird life, fish, amphibians, invertebrates ,insects, the eight and ten legged, the zero legged, the tentacled, the climbers the flyers and the crawlers, the diggers and the nest builders, the huge mammals, the tiny mammals, the middle sized mammals including Homo sapiens, the creatures who survive in the Arctic and Antarctic, the ones who live in deserts, or rain forests, the carnivores, the plant eaters, the parasites, the plant life forms who take their sustenance directly from the sun, the air breathers, the underwater breathers, the fresh water dwellers, the salt water dwellers, those that live for a day, those who live for a hundred or more years, all the huge variety of life on this teeming wonderful overcrowded extraordinary world where life has crept into every nook and cranny and it is ALL, with very few exceptions, based on a BINARY existence which means that for a species to exist and continue to exist requires a distinct male and a distinct female of the species to produce the next generation.
It is the way our planet has developed. There may be other planets where things are different, and as soon as we have proof of that it will be fascinating to compare. But our world, is and for ever more will be, a biologically binary masterpiece.