Johnson Grass

Aleppo Grass, Aleppo Milletgrass

Johnson Grass
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Can be found in crop fields, pastures, abandoned fields, rights-of-way, forest edges, and along streambanks. It thrives in open, disturbed, rich, bottom ground, particularly in cultivated fields, but grows and spreads so quickly that it can 'choke out' other cash crops that have been planted by farmers.

If it becomes wilted from frost or hot dry weather, it can contain sufficient amounts of hydrogen cyanide to kill cattle and horses if it is eaten in quantity. The foliage can cause 'bloat' in such herbivores from the accumulation of excessive nitrates; otherwise, it is edible.

It is considered to be one of the ten worst weeds in the world.