Nux vomica, commonly known as poison nut or Strychnos nux-vomica, is a tree native to Southeast Asia, particularly India, Indonesia, and Sri Lanka. The name Nux vomica is derived from Latin, where nux means "nut" and vomica means "vomiting," referring to the toxic properties of the seeds. In Hebrew, it is known as נוקס וומיקה. The tree's seeds contain potent alkaloids, including strychnine and brucine, which are highly toxic and can be fatal if ingested. Historically, the seeds have been used in traditional medicine, particularly in Ayurveda, for their stimulant and therapeutic properties when used in controlled doses. However, due to their high toxicity, they are rarely used in modern medicine and are primarily known for their dangerous effects. In French, the plant is referred to as nux vomique, and in German, it is known as Brechnuss. The tree itself can grow up to 25 meters tall and is characterized by its elliptical leaves and greenish-white flowers.