Sorghum halepense

Sorghum halepense is toxic to horses. The reported severity is severe. Also known as Johnson Grass and Columbus Grass.

horses

Mild Moderate Severe Critical

If your animal ate this plant, call your veterinarian, the ASPCA Animal Poison Control on (888) 426-4435 or the Pet Poison Helpline on (855) 764-7661. Fees may apply.

Symptoms to watch for

Drooling Weakness Cardiovascular Collapse Difficulty Breathing Oral Irritation

The color of each symptom follows the severity scale above.

About

Johnson grass or Johnsongrass, Sorghum halepense, is a plant in the grass family, Poaceae, native to Asia and northern Africa. The plant has been introduced to all continents except Antarctica, and most larger islands and archipelagos. It reproduces by rhizomes and seeds.

Common Names

  • Johnson Grass
  • Columbus Grass

Also recorded as Aleppo Grass, Arabian-millet, Cuba-grass, Egyptian Millet, Evergreen Millet and Grass Sorghum.

Facts

Family
Poaceae
Duration
Perennial
Growth habit
Graminoid
In the wild
US, FR, ES, RO, AU, IT + more
Source
Wikipedia, CC BY-SA 4.0
Elsewhere

Countries with the most wild observations, from GBIF data.