New to me, and perhaps to you. Timothy S. Miller’s fine and comprehensive “Timeline of Botanical Fictions”. Also covers fungal spores. Does not stray into modern high fantasy (e.g. Tolkien’s Ents) or flower-fairies and suchlike.

What we need now is a best-of-the-best collection, I’d suggest, which weeds out all the so-so jungle tales of giant fly-traps and poison pods, and the creakier pulp greenhouses-of-horror.