narrowleaf arnica Directory References Discover 7 of the World’s Deadliest Shipwrecks What Do Eggs Have to Do with Easter? Causes of the Great Depression 7 of the World’s Most Dangerous Festivals Titanosaurs: 8 of the World's Biggest Dinosaurs How Deadly Is Quicksand? What is Holy Week? Contents narrowleaf arnica plant Ask the Chatbot a Question Ask the Chatbot a Question Also known as: Arnica angustifolia Learn about this topic in these articles:description In arnicaNarrowleaf arnica (A. angustifolia) of Arctic Asia and America has orange-yellow flower heads 5–7 cm (2–2.5 inches) across and is a protected species in some countries. Read More