I had not heard of a Triffid before someone started making fun of MiFID compliance.

The triffid is a highly venomous fictional species of plant that appears to have limited intelligence and survival instincts. It is the titular antagonist from the 1951 novel The Day of the Triffids by John Wyndham and also later appears in Simon Clark’s novel The Night of the Triffids, a sequel set 25 years later, in which the triffid evolves into a more threatening form.

Evil attacking plants. But the best part in Wikipedia is how the “Evolution of the triffid threat” is described:

Despite their dangerous nature, it was determined that the value of a triffid outweighed the risks, and people began to cultivate them as a commercial crop. This resulted in triffid seeds being spread all over the world in a comparatively short space of time: within 20 years, triffids were a common crop in numerous countries.

It is written in a non-fiction tone and is believable until you get to the part where triffids take over all the urban spaces and force humans to live in “fortified farms” in the countryside. Plants taking over cities and forcing humans to hide in nature?