Weed Habitat

• Native to tropical South America, Central America, Caribbean, and Mexico.
• It can invade pastures and replace more productive types of grass.
• Often found along roadsides, pastures, and unmanaged lawns, where the seeds are spread by machinery. 

Description 

• Seed head that grows up to 25 centimetres long and is between 5 and 30mm wide.  
• Perennial grass up to 75 cm tall with clumping habit. 
• American rat's tail grass is very similar to giant rats tail grass about 1.0 m in height. The experts have difficulty differentiating the two.