Johnson grass

Sorghum halepense
Grass
Alternate
Simple
Red
Green

Erect perennial grass 0.5 -2metres in height, with glaborous to downey nodes. Leaves are alternately arranged smooth to 50cm long with a very pronounced mid-vein

Common names 
Also known as: Johnson grass, Aleppo, Aleppo grass, Aleppo milletgrass, Arabian millet, meansgrass, Cuba grass, maidencane, Egyptian grass, evergreen millet, false Guinea grass,
Family 
Poaceae
Deciduous 
No
Flowering time 
Summer-Autumn
Native/Exotic 
Exotic
Origin 
The exact native range of this species is obscure. It is thought to be native to north-eastern Africa (i.e. Egypt and Libya), western Asia (i.e. Afghanistan, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey, Armenia, Azerbaijan, southern Kazakhstan, Kyr
Notifiable 
No
Council declaration 
Class R – Reduce populations
Known distribution 

Widely naturalised, particularly in the wetter parts of mainland Australia. It is most prominent in the coastal and sub-coastal regions of New South Wales and in south-eastern Queensland. Relatively common in Victoria, the ACT, south-eastern South Australia and south-western Western Australia. It also has a scattered distribution in other parts of these states. Widely naturalised overseas, including in North America (i.e. southern Canada, the USA and Mexico), Central America, South America, south-eastern Asia (i.e. the Philippines, Thailand, Indonesia and Papua New Guinea), New Zealand and on numerous Pacific islands (e.g. Fiji, French Polynesia, Guam, Hawaii, New Caledonia, Palau and Tonga).

Habitat 

A weed of disturbance Johnson grass rtypically establishes in damp to wet areas along roadsides and in disturbance zones. Heavily associated with peri-urban release lands

Habit 

Rhizomatous, tufted perennial, grass-like or herb, 0.5-2 m high

Impact and control methods 

When removed from grazing pressure this grass, grows and spreads quite rapidly outcompteteing native vegetation . Can be a fire hazard during dry periods

Stem and leaves 

Leaves are alternately arranged smooth to 50cm long with a very pronounced mid-vein and rough margins.

Reproduction and dispersal 

Reproduces both sexually and asexually. Dispersing through dehicsing seeds that are spread by wind; water; animals and birds. Seeds are viable for 20+ years.