Kobold Press’ “Unlikely Heroes” has a plant race in it - the kijani (Swahili for “green” ... super creative name, I know, but the race seems interesting).
There have been a few attempts. They've all been horrible.
4e had the wilden, which was an extension of the 3e killoren. And Pathfinder has the ghorens. And there are many, many others.
All seem rather awkward, being unrelated to the myriad plant monsters in the game. They're attempts to make a new race whole cloth, which seldom resonate as well as creatures with a legacy, who have proved interesting enough to keep bringing back again and again. It doesn't help that they're seldom worked into settings and simply forced into campaigns with minimal lore. Simply "here's a plant race that now exists because we needed a plant race!"
In Out of the Abyss there's a Myconoid in the very first starting area. But it is decidedly a petA character has one as a pet.
There is a fully sentient fungal race though: Myconoid.
In Out of the Abyss there's a Myconoid in the very first starting area. But it is decidedly a pet![]()
I have jack o' lanterns: animated pumpkin vines wound into humanoid shape, generally wearing clothing stuffed with straw so they don't look freakishly thin. Minor agricultural spirits created to help and protect mortal farmers, they are very friendly and down-to-earth, and can most often be seen as farmhands in isolated rural areas. But urban folk tend to view them with superstitious fear, so they avoid cities and areas with a lot of traffic.