Article Nº 1289 Plant Vol. I · p. 762
Johnson grass (Andropogon halepensis)
Original title: Escalracho (Andropogon halepensis)
Description of Johnson grass, a perennial grass considered harmful or poisonous to livestock before maturity.
A perennial grass, 3–15 decimetres tall, with its spikelets gathered in a broad, pyramidal panicle, usually violet in colour. This plant is considered harmful and even poisonous to livestock before it is fully mature. It is possible that, while young, it contains some prussic acid.