Weeds - Grass Weeds Information and Photo Gallery

Grass Weeds

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Annual Meadow Grass (Poa annua)
A common weed of arable and grass crops and can be a severe problem in some cases. Once present it rapidly establishes, flowering and seeding more or less constantly throughout the year. <Click for more information>.

Barren Brome (Anisantha sterillis)
This is a common sprecies but does not usually occur in high densities in arable fields. Ploughing helps with control as this grass does not germinate easily if deeply buried <Click for more information>.

Black bent (Agrostis gigantea Roth. A.nigra)
A native, rhizomatous perennial grass found in grassy places, black bent is a serious weed of arable land especially on light sandy or gravely soil. It is distributed throughout the British Isles but is commonest in the south and east. <Click for more information>.

Black grass (Alopecurus myosuroides)
This is one of the most damaging weeds of winter cereals in England. Its distribution is closely linked to that of winter cereals.  However, in recent times it has become more common . spring grown crops. <Click for more information>.

Cocksfoot (Dactylis glomerata)
One of the commonest grasses - a robust, rather tough and succulent grass with the flower-heads arranged in a manner which has been fancifully compared to the foot of a cockerel or hen. It occurs in a wide variety of grassy habitats. <Click for more information>.

Couch grass (Agropyron repens)
This is a common perennial species and can be extremly problematic in organic systems. Spreads by rhizomes which form new plants from tiny pieces when the rhizome is broken during cultivations. <Click for more information>.

Creeping bent (Agrostis stolonifera)
A tufted grass with creeping and rooting leafy stem-like stolons. It is common in grassland, bare wet ground and stony ground. It is fast to germinate but seedlings grow slowly giving time for control. <Click for more information>.

Italian ryegrass (Lolium multiflorum Lam.)
Italian ryegrass, also called annual ryegrass. It is an upright annual that behaves like a biennial or short-lived perennial and is not particularly persistent. It grows vigorously in winter and early spring. <Click for more information>.

Loose silky-bent (Apera spica-venti)
This annual grass grows from 30cm to 1.5m high and is found predominately on light arable land in the East and South of England. Germination occurs in autumn and spring to provide plants which vigorously compete with winter wheat. <Click for more information>.

Meadow brome (Serrafalcus)
Brome grasses are now routinely reported in cereals crops, usually adjacent to the headlands but increasingly being seen in much greater numbers deeper into fields. Bromes are very competitive within a cereal crop. Moves towards minimum tillage and earlier drilling encourage this weed. <Click for more information>.

Meadow fescue (Festuca pratensis)
A widespread, perennial species. It is a tall, tufted grass similar to tall fescue. It grows in meadows, on roadsides, riversides etc. on moist, rich soils. <Click for more information>.






Onion couch (Arrhenatherum elatius )
Onion couch is a perennial grass that occurs throughout the UK both as an arable weed and as a component of semi-natural grassland. There was no obvious relationship with soil type but rainfall patterns may play a key role in distribution. <Click for more information>

Perennial ryegrass (Lolium perenne)
A native species which is is found in a wide variety of grass-dominated habitats and is common in intensively managed grasslands. It is also an important agricultural grass, and selected varieties are sown in artificial leys to create improved pastures and meadows for grazing, silage or hay. <Click for more information>

Rough meadow grass (Poa trivialis L)
Rough meadow-grass is an indigenous grassland species that has become increasingly important as a weed of winter cereals. It is found throughout the UK in all types of grassland especially newly established leys. <Click for more information>

Smooth meadow grass (Poa pratensis)
Common on roadsides, grassland and waste ground, preferring dry soils. Broadly distributed throughout the UK on a wide variety of soils. <Click for more information>

Soft brome (Bromus hordeaceus L. )
This is a very variable annual or biennial plant. It can be found in a wide variety of habitats including meadows, stone walls, waste ground, roadside verges etc. in lowland situations. <Click for more information>

Timothy (Phleum pratense)
Timothy is a perennial grass that is commonly grown for cattle feed. As a result it is very variable in format owing to strains developed for hay and grazing. It is common as a weed on roadsides and rough ground. <Click for more information>

Wild oats (Avena fatua L.)
An introduced annual weed of arable, waste and rough ground common in much of England, especially the south and west. It occurs on most soils, heavy, light, acid and alkaline. <Click for more information>

Yorkshire fog (Holcus lanatus L.)
A perennial grass native on rough grassland, arable and waste ground and in open woods. It is abundant and broadly distributed across the UK. It is found on a wide variety of soils including those that are poorly-drained or water-logged. It is well adapted to growing in wet conditions but can survive a moderate drought. <Click for more information>

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