IPM1024, Revised October 2010
Winter annual grasses
Volunteer wheat is a coarse, nonpersistent annual grass. Stems are erect, branch at the base and reach up to 3–3½ feet in height. Leaf blades are 7–11 mm wide and smooth but rarely rough. Auricles are small to prominent, and the ligule is a short membrane.
Collar region: short, membranous ligule.Right, small to prominent auricles.
Wheat is a commonly cultivated agronomic crop grown in many soil types, but volunteer wheat can persist in any disturbed site in wheat-growing areas. It can also be a contaminant in turfgrass settings where its straw was placed on the soil surface during seedling establishment.
Volunteer wheat is found throughout Missouri and other wheat-producing areas of the United States.
Some of the ryegrass species (Lolium spp.) have a similar growth habit but a glossier texture.
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