The creepy creeping of creepers

This weekend I went to see Little Shop of Horrors at the Manchester Royal Exchange Theatre. The plant villain, Audrey Two, was the highlight of the show on so many levels, from the design of the plant models to the intense expressions of the puppeteer singers as they animated this rubbery villain. It reminded me of just how disconcerting I’ve always found carnivorous plants. Plant eats animal is such an inversion of the natural order we expect from the world, I suspect that most people feel a shiver at the idea. It makes carnivorous plants, from tiny venus flytraps to Audrey Two, that bit more disconcerting, and so great as a menace in a story.

Weirdly though, John Wyndham’s Day of the Triffids is the only other story I can think of with a plant-based villain (apart from a very hazy recollection of an old Doctor Who episode). I think it’s something I want to try writing, but I don’t want to just re-tread the same old ground, so help me internet – what other plant villains are out there?