blue vervain Directory References Discover Inventors and Inventions of the Industrial Revolution Pro and Con: School Uniforms 14 Tough Questions Answered 12 Novels Considered the “Greatest Book Ever Written” 8 of the Largest Empires in History Flags That Look Alike Why Is It Called Black Friday? Contents blue vervain plant Ask the Chatbot a Question Also known as: Verbena hastata Learn about this topic in these articles:Verbena In verbenaThe blue vervain (V. hastata) reaches a height of 1.5 metres (5 feet) and produces spikes of blue to purple flowers. The Eurasian species V. officinalis, the herb of the cross, was once considered a medicinal plant.Read More
