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Johnson grass or Johnsongrass, Sorghum halepense, is a plant in the grass family, Poaceae, native to Asia and northern Africa. [1] The plant has been introduced to all continents except Antarctica, and most larger islands and archipelagos. It reproduces by rhizomes and seeds.
Xanthorrhoea johnsonii (also known as Johnson's Grass Tree) is a large plant in the genus Xanthorrhoea found in eastern Australia. [1] The trunk can grow to 5 metres tall. Older foliage is very strong, hence one of the common names being "steel grass", and is commonly used in floral design where it can be bent and looped without breaking. [2]
Sorghum halepense – Johnson grass – North Africa, islands of eastern Atlantic, southern Asia from Lebanon to Vietnam; naturalized in East Asia, Australia, the Americas; Sorghum interjectum – Northern Territory, Western Australia; Sorghum intrans – Northern Territory, Western Australia
Johnson's seagrass is a small, asexual seagrass in the family Hydrocharitaceae (the "tape-grasses"). It has been called Halophila johnsonii , but is now considered to be a clone of the widespread species Halophila ovalis .
Australian Johnson grass virus Maize dwarf mosaic virus — Kansas I strain Johnsongrass mosaic virus (JGMV) is a plant pathogenic virus of the family Potyviridae .
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Sudan grass, Johnson grass: Cyanide produced after stress [4] [10] [16] Stachys arvensis: Field woundwort or stagger weed [27] Stipa viridula: Sleepy grass [8] Swainsona: Darling peas [10] Taraxacum officinale: Dandelion When infected with a toxic mold that grows on it, the plant has been linked to outbreaks of Australian stringhalt. [23] Taxus ...
The most economically important host is corn, but other forms may infect sorghum, Johnson grass, or sudangrass. [2] The most common diagnostic symptom of the disease on corn is cigar-shaped or elliptical necrotic gray-green lesions on the leaves that range from one to seven inches long. [3]