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Pesticide Safety Education Program

Ohio State University Extension


Columbus grass (Sorghum x almun)

Description: Hybrid between Grain sorghum (S. bicolor) and Johnsongrass (S. halepense).

Life Cycle: Perennial

Habitat: Fields, ditches, canals and roadsides

Flower:  6-24 in. long, spreading branches

Fruit: Seeds 0.25-0.4 in. long and smooth

Leaves: Flat with sandpaper feel. Blades are 0.5-1.5 in. wide by 18-32 in. long

Root: Short, thick, scaly underground runners

The problem is…Columbus grass has the potential to harbor diseases and insect pests of sorghum, maize and sugar cane

vegetative columbus grass

columbus grass stem

columbus grass seedhead

columbus grass rhizome