Definition of arrow weed in US English:

arrow weed


  • 1Arrowhead (genus Sagittaria).

  • 2US an evergreen shrub native to southwestern United States and northern Mexico, Pluchea sericea (family Asteraceae), which grows in dense thickets and has greyish-green leaves, clusters of purple flowers, and stiff straight stems formerly used by North American Indians to make arrows; compare arrowwood.


Mid 19th century.