| Agronomy 105's Weed ID | |
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| Sudangrass was introduced into the United States from the tropical regions of the Eastern hemisphere. It is an annual grass that grows from 3 to 6 feet tall and is used for silage and emergency pastures. Sudangrass reproduces by seed only. | |
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The seeds of Sudangrass look somewhat like those of Johnson-grass however, they will be larger. The color of these seeds will vary from dark purplish to bright red or even a very light tan. Johnsongrass seed is smaller and will have a knob on the end of the rachilla, whereas in Sudangrass these knobs are almost always broken off. |