Ambrosia chamissonis (Beach-bur)

Ambrosia chamissonis, commonly known as Beach-bur, is a species of flowering plant in the sunflower family. It is a low-growing perennial herb that is native to coastal dunes and sandy beaches. The plant has distinctive lobed leaves and produces inconspicuous green flowers that develop into spiny bur-like fruits. Beach-bur is well-adapted to coastal environments and plays an important role in stabilizing sand dunes.