Hordelymus europaeus

The scientific name for the grass Wood barley.
Hordeum

The genus name for range of grasses (5 species) called Barley.
Hordeum secalinum, Meadow barley.
Hordeum murinum, Wall barley.
Hordeum distichon, Two-rowed barley.
Hordeum hexastichon, Six-rowed barley.
Hordeum marinum, Sea barley.
Hybrid Fescue

An uncommon Perennial grass, with the scientific name of x Festulolium loliaceum. The leaf is Flat or rolled, having a typical width of 7mm. The Ligule is Membranous, being 1mm in length; Auricle?: Yes. Growth type is Tufted.
Hybrid Marram

A rare Perennial grass, with the scientific name of x Ammocalamagrostis baltica. The leaf is Flat or rolled, having a typical width of 7mm. The Ligule is Membranous, being 10-25mm in length; Auricle?: No. Growth type is Rhizomatous.
Hybrid Ryegrass

A term which is sometimes used to describe the plant which is a cross between Italian Ryegrass and Perennial Ryegrass and which is used for agricultural forage, not turfgrass situations. Its scientific name is Lolium x boucheanum. It is also sometimes referred to as Tetraploid Hybrid Ryegrass.
Hybrid Sea-Couch

An uncommon Perennial grass, with the scientific name of Agropyron x obtusiusculum. The leaf is Flat or rolled, having a typical width of 2-7mm. The Ligule is Membranous, being 1mm in length; Auricle?: Yes. Growth type is Rhizomatous.
Hybrid Sweet-Grass

A common Perennial grass, with the scientific name of Glyceria x pedicellata. The leaf is Flat or rolled, having a typical width of 5-12mm. The Ligule is Membranous, being 10mm in length; Auricle?: No. Growth type is Stoloniferous.
Interrupted Brome

A rare Annual grass, with the scientific name of Bromus interruptus. The leaf is Flat or rolled, having a typical width of 2-6mm. The Ligule is Membranous, being 1-2mm in length; Auricle?: No. Growth type is Tufted.
Italian Ryegrass

A common Annual grass, with the scientific name of Lolium multiflorum. The leaf is Flat or rolled, having a typical width of 10mm. The Ligule is Membranous, being 1-2mm in length; Auricle?: Yes. Growth type is Tufted. It is typically sown for agricultural purposes as a forage grass but not as a routine turfgrass in the UK. It can be used as a nurse crop or for winter overseeding of some Bermuda grass surfaces in the warmer climates of the USA but wasn't used for high quality surfaces, although grass breeding has produced cultivars which can now be sown at low temperatures for use within
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Kentucky Bluegrass

A common name, which is used in many countries (especially the USA), for Poa pratensis.