Vampire Rose
The Vampire Rose or Bloodrose is one of the many, many deadly plant monsters found in Dungeons & Dragons. In this particular case, Vampire Roses are blood-sucking vine-type roses, which lash out at nearby living creatures to impale them with their thorny branches and exsanguinate them. A starving Vampire Rose is pure white, but the more well-fed they are, the deeper red they turn.
The Vampire Rose debuted in the module B3: Palace of the Silver Princess for Basic Dungeons & Dragons, as the... "Jupiter Blood Sucker". Yeah, Tom Moldvay saved this one. It went on to show up in the Mystara and second Ravenloft Monstrous Compendiums, and 3e's Denizens of Darkness/Dread. Its most recent appearance was in Dungeon Magazine #195 for Dungeons & Dragons 4th Edition.
A similar vampire plant was mentioned in background lore in The Elder Scrolls 4: Oblivion.
