Native to the Mediterranean region. Widespread in the southwest United States.
A winter annual grass weed. Grows in many row crops and grain crops as a serious pest.
Seeds germinate from late fall to mid-winter, and plants mature in late spring to early summer. Seed head production occurs in the spring.
Mature plant may grow to over 3 feet tall, or be more compact and under 12 inches. Stems grow upward, often with a distinct bend at the lower nodes, and branching occurs at the base of the plant.
Leaf blades may be 6 inches long and only ¼ inch wide, arising at intervals along the stem. The leaves may be flat, or appear somewhat folded.
The flower head forms at the end of the stalk as a very thick, oblong shape up to 4 inches long. The spikelets are crowded together, and somewhat sharp-pointed at their ends.
Characteristicts Important to Control:
Early winter germination of seeds.