arnica (Arnica montana)

Arnica is included in this list for the sake of completion, but it is not something that you would use as a recipe ingredient.

• Arnica is a genus of herbs in the sunflower family.
• Arnica montana is the specific herb that has been used in herbal medicine for hundreds of years. It is toxic if eaten in quantity.
• It is a European wild plant, now rarer in the wild and in many areas is a protected species.
• It is cultivated to supply the market demand.
• You could try growing your own.