Italian Rye-grass

Italian Rye-grass - Lolium multiflorum

Description

This grass has smooth wiry stems and long inflorescences of stalkless spikelets arranged along the stem in two opposite, alternating rows, edgeways on to the stem, similar to L. perenne, but the lemmas are usually long awned (to 10 mm), and its leaves are wider (to 10 mm). It is also usually taller than L. perenne.

Similar Species

Lolium perenne - which doesn't usually have awns

Identification difficulty
ID checklist (your specimen should have all of these features)

Inflorescence a spike with stalkless (sessile), flattened spikelets alternating up the rhachis edgeways-on to it. Young tiller leaves are rolled, not folded. Florets are usually awned.

Habitat

Arable and cultivated fields and sown grassland.

When to see it

May to September.

Life History

Annual or biennial.

UK Status

Common throughout Britain.

VC55 Status

Quite common in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 384 of the 617 tetrads.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Additional images

All NatureSpot records

Photo of the association

Ergot

Ergot (Claviceps purpurea) is a violet-black spindle-shaped structure longitudinally furrowed, up to 1cm long, and formed in the inflorescences of grasses. The fungal body is described as an ergot kernel.

Photo of the association

Choke

Epichloe typhina fungus galls the stems of various grasses, the gall often having a rather tubular appearance. It is white in the early stages, yellowing when mature. On various grasses including many of our most common species including Sweet Vernal-grass, False Oat-grass, Cock's-foot, Perennial Rye-grass, Wood Millet, Timothy and Rough Meadow-grass.