Bezoar is an Aloe looking-like bush, commonly know for its anti-toxic sap. Juice created by squeezing its leaves is capable of neutralizing any, know or not, poison, toxin and/or venom.
Unfortunately 'miracle sap' become a reason why this amazing plant came to extinction barely two hundred years ago. Back to time before Night Princess' bunt against her Sister, Bezoar's sap was abused in every single case of poisoning, ever if there was available effective antidote, ponies frequently chose Bezoar instead of another medicine.
Joker Vines is a red vine-like plant with pink heart-shaped leaves which quickly overgrows whole clearing inside forests, commonly described as Poison Joke's 'Big Brother'. While being very similar to Poison Joke, its pollen is far more potent than that of its cousin.
Joker Vines' venom spreads quickly through blood and can cause symptoms almost instantly after contact with. Not only it can be very unpleasant experience, but in opposite to Poison Joke pollen, symptoms it causes are major. What is far worse, Joker Vines venom can affect both body AND mind, with possibility to cause amnesia, insanity, brain reduction, suicidal thoughts, or simply cause changes which are simply lethal. Amount of Joker Vines venom in its victim's blood is also important as effects it causes can graduate from minor appearance changes to serve limbs dislocations.
Fungus Lucida
Fungus Lucida is a very rare species of large mushroom recognizable by its Bio-luminescence. Fungus Lucida prefers very thick and lush forests, sometimes turning them into so called "Mushroom forests" thanks to its size. Its appearance is of giant white mushroom with bright blue spots on its caps. Fungus Lucida can cover whole clearings with its mycelium turning them unnaturally white.
Fungus Lucida is an interesting mushroom not only because of its massive size, but also because it posses a functional neural system. The tests done on wild colonies point even towards the fact that it might even be sentient, Whoever due to lack of any respiratory or muscle system communication with its specimens become failures.