"I'm pretty sure you're not supposed to eat the stem." -AviDescription: This unique plant replaces any block of foliage with a 0.2% chance for every block. By pressing "E," you can eat(?) this to heal 1 health, and gain 1 maximum health until you have 30 health, which is the max. It's only found in the dungeon, and is purchasable in a dungeon shop for 12 coins.
What this item looks like in-game.