The truth is that the definition of "species" even within published science can vary widely between different parts of the ~~tree~~ network of life If botanist

The truth is that the definition of "species" even within published science can vary widely between different parts of the ~~tree~~ network of life If botanists really tried to maintain the idea that different species can't interbreed with each other then we'd have a LOT less species of plants. In some discussions, such as with the taxonomy of oaks which are notoriously difficult to classify into species, definitions can even vary from author to author and can be based on morphology, phylogeny, distribution, or, most often, some blend of elements from all of the above