Number 5 - Deadly Nightshade

Deadly Nightshade, or Atropa belladonna, is the most poisonous known plant in the western hemisphere.

This plant was originally used in Italy in eye drops to dilute the pupil in the eyes of women, producing a desired look at the time. The plant eventually stopped being used for this purpose as the toxicity of the plant lead to blindness. The plant can also be used in treating gastrointestinal issues, and some elements can be used to treat irritable bowel syndrome, even today.

The plant is administered in a powder, a tincture or as a decoction. The plant made an appearance in the movie The Nightmare Before Christmas, due to its association with witches and their spells.

Sally from The Nightmare Before Christmas with a jar of Deadly Nightshade (Source: The Nightmare Before Christmas by Tim Burton & Disney)

Number 4 - Devil's Snare

Our first fictional herb entry is Devil's Snare from the first Harry Potter novel. A possible Latin term for the plant could be Diaboli laqueis.

This plant uses its tentacle-like vines to strangle it's prey, not unlike a snake.

In escaping the Devil's Snare, expose some light upon the plant. It will shrivel and recoil from the light. Casing any lumos spell, or even shining a torch, will cause the Snare to release you.

Harry, Ron and Hermoine fighting the plant. "Devil's Snare, Devil's Snare. It's deadly fun, but will sulk in the Sun." (Image by thepolestar. Devil's Snare is the creation of J.K. Rowling).