Ambrosia Artemisiifolia is a herbaceous plant commonly known as ragweed. Ragweed is a flowering plant that typically grows in the summer and fall in temperate regions. Its pollen is a major cause of allergies, and can trigger asthma, hay fever, and other respiratory problems. Ragweed leaves are used as a natural remedy for asthma, and the plant is also used in the production of herbal teas. Synonyms for Ambrosia Artemisiifolia include hay fever weed, bitterweed, and Roman wormwood. The plant is considered invasive in some regions and can negatively impact native plant species.