Iva annua, the annual marsh elder or sumpweed, is a North American herbaceous annual plant in the sunflower family that was historically cultivated by Native Americans for its edible seed.
Iva annua is an annual herb up to 150 cm (5 feet) tall. The plant produces many small flower heads in a narrow, elongated, spike-like array, each head with 11–17 disc florets but no ray florets.
It is native to northeastern Mexico (Tamaulipas) and to the central and southern United States, primarily the Great Plains ...
Type a symptom or a disease and read about herbs that might help, type a herb and see diseases and symptoms it is used against.
*All information is based on published scientific research