"The trail became thicker, overgrown by smaller red and purple plantlike forms, phytids, filling in between the arborids. I lost my way and had to listen for the sound of the river to orient myself."

Since I saw the first IR photos in my timeline a few weeks ago, I felt like I had seen or imagined something similar in the past. And now I finally remembered! In Greg Bear's 1995 book "Legacy" he describes a world where the flora and fauna is colored in red and purple hues.