The name Verbena means “altar plant,” and it was used as an altar herb by the Egyptians, Romans and Greeks. Altars were sprinkled with Vervain water, and Vervain twigs were bundled and used to sweep altars. ... They then poured honey into the ground to replace the plant.
"Vervain is also known as American Blue Vervain and Simpler's Joy. This plant is in the Plant Family Verbenacea, but not to be confused with Lemon Verbena (Aloysia triphylla). These are two different plants only belonging to the same Plant Family. Vervain is indigenous to the United States growing naturally along roadsides and tall grassy fields flowering between June and September. It is a tall (3-4 feet), slender, elegant, perennial plant with opposing leaves which are lobed and serrated in shape and have small purplish-blue flowers. Historically it was listed for use by King's American Dispensatory as, tonic, emetic, expectorant, and sudorific. A Sudorific is a substance that causes or increases sweating. It is a plant that is overlooked by modern herbalists, but one that deserves renewed interest for its versatile influences on numerous systems." Quote: Gaia Herbs